Mercurial > hg > octave-lyh
annotate NEWS @ 14461:80e8c03548a4 gui
Merge default onto gui
| author | Jordi Gutiérrez Hermoso <jordigh@octave.org> |
|---|---|
| date | Tue, 13 Mar 2012 19:11:52 -0400 |
| parents | d738c29a2528 12ccdce2c216 |
| children | 86847bd1ccf0 |
| rev | line source |
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1 Summary of important user-visible changes for version 4.0: |
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2 --------------------------------------------------------- |
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3 |
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4 ** A new GUI is now available with Octave. |
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5 |
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6 Summary of important user-visible changes for version 3.8: |
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7 --------------------------------------------------------- |
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8 |
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9 ** Other new functions added in 3.8.0: |
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10 |
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11 colorcube |
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12 lines |
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13 rgbplot |
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14 |
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15 ** Deprecated functions. |
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16 |
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17 The following functions were deprecated in Octave 3.4 and have been |
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18 removed from Octave 3.8. |
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19 |
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20 autocor dispatch is_global strerror |
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21 autocov fstat krylovb values |
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22 betai gammai perror |
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23 cellidx glpkmex replot |
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24 cquad is_duplicate_entry saveimage |
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25 |
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26 The following functions have been deprecated in Octave 3.8 and will |
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27 be removed from Octave 3.12 (or whatever version is the second major |
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28 release after 3.8): |
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29 |
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30 <none yet> |
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31 |
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32 The following keywords have been deprecated in Octave 3.8 and will |
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33 be removed from Octave 3.12 (or whatever version is the second major |
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34 release after 3.8): |
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35 |
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36 static |
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37 |
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38 |
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39 Summary of important user-visible changes for version 3.6: |
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40 --------------------------------------------------------- |
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41 |
| 14188 | 42 ** The PCRE library is now required to build Octave. If a pre-compiled |
| 43 package does not exist for your system, you can find PCRE sources | |
| 44 at http://www.pcre.org | |
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45 |
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46 ** The ARPACK library is no longer distributed with Octave. |
| 14188 | 47 If you need the eigs or svds functions you must provide an |
| 48 external ARPACK through a package manager or by compiling it | |
| 49 yourself. If a pre-compiled package does not exist for your system, | |
| 50 you can find the current ARPACK sources at | |
| 51 http://forge.scilab.org/index.php/p/arpack-ng | |
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52 |
| 14082 | 53 ** Many of Octave's binary operators (.*, .^, +, -, ...) now perform |
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54 automatic broadcasting for array operations which allows you to use |
| 14082 | 55 operator notation instead of calling bsxfun or expanding arrays (and |
| 56 unnecessarily wasting memory) with repmat or similar idioms. For | |
| 57 example, to scale the columns of a matrix by the elements of a row | |
| 58 vector, you may now write | |
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59 |
| 14082 | 60 rv .* M |
| 61 | |
| 62 In this expression, the number of elements of rv must match the | |
| 63 number of columns of M. The following operators are affected: | |
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64 |
| 14082 | 65 plus + .+ |
| 66 minus - .- | |
| 67 times .* | |
| 68 rdivide ./ | |
| 69 ldivide .\ | |
| 70 power .^ .** | |
| 71 lt < | |
| 72 le <= | |
| 73 eq == | |
| 74 gt > | |
| 75 ge >= | |
| 76 ne != ~= | |
| 77 and & | |
| 78 or | | |
| 79 atan2 | |
| 80 hypot | |
| 81 max | |
| 82 min | |
| 83 mod | |
| 84 rem | |
| 85 xor | |
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86 |
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87 additionally, since the A op= B assignment operators are equivalent |
| 14082 | 88 to A = A op B, the following operators are also affected: |
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89 |
| 14082 | 90 += -= .+= .-= .*= ./= .\= .^= .**= &= |= |
| 91 | |
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92 See the "Broadcasting" section in the new "Vectorization and Faster |
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93 Code Execution" chapter of the manual for more details. |
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94 |
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95 ** Octave now features a profiler, thanks to the work of Daniel Kraft |
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96 under the Google Summer of Code mentorship program. The manual has |
| 13262 | 97 been updated to reflect this addition. The new user-visible |
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98 functions are profile, profshow, and profexplore. |
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99 |
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100 ** Overhaul of statistical distribution functions |
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101 |
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102 Functions now return "single" outputs for inputs of class "single". |
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103 |
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104 75% reduction in memory usage through use of logical indexing. |
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105 |
| 14188 | 106 Random sample functions now use the same syntax as rand and accept |
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107 a comma separated list of dimensions or a dimension vector. |
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108 |
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109 Functions have been made Matlab-compatible with regard to special |
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110 cases (probability on boundaries, probabilities for values outside |
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111 distribution, etc.). This may cause subtle changes to existing |
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112 scripts. |
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113 |
| 14188 | 114 negative binomial function has been extended to real, non-integer |
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115 inputs. The discrete_inv function now returns v(1) for 0 instead of |
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116 NaN. The nbincdf function has been recoded to use a closed form |
| 14188 | 117 solution with betainc. |
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118 |
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119 ** strread, textscan, and textread have been completely revamped. |
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120 |
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121 They now support nearly all Matlab functionality including: |
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122 |
| 14082 | 123 * Matlab-compatible whitespace and delimiter defaults |
| 124 | |
| 125 * Matlab-compatible options: 'whitespace', treatasempty', format | |
| 126 string repeat count, user-specified comment style, uneven-length | |
| 127 output arrays, %n and %u conversion specifiers (provisionally) | |
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128 |
| 14082 | 129 ** All .m string functions have been modified for better performance or |
| 130 greater Matlab compatibility. Performance gains of 15X-30X have | |
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131 been demonstrated. Operations on cell array of strings no longer pay |
| 14082 | 132 quite as high a penalty as those on 2-D character arrays. |
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133 |
| 14082 | 134 deblank: Now requires character or cellstr input. |
| 135 | |
| 136 strtrim: Now requires character or cellstr input. | |
| 137 No longer trims nulls ("\0") from string for Matlab | |
| 138 compatibility. | |
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139 |
| 14082 | 140 strmatch: Follows documentation precisely and ignores trailing spaces |
| 141 in pattern and in string. Note that this is documented | |
| 142 Matlab behavior but the implementation apparently does | |
| 143 not always follow it. | |
| 144 | |
| 145 substr: Now possible to specify a negative LEN option which | |
| 146 extracts to within LEN of the end of the string. | |
| 147 | |
| 148 strtok: Now accepts cellstr input. | |
| 149 | |
| 150 base2dec, bin2dec, hex2dec: | |
| 151 Now accept cellstr inputs. | |
| 152 | |
| 153 dec2base, dec2bin, dec2hex: | |
| 154 Now accept cellstr inputs. | |
| 155 | |
| 156 index, rindex: | |
| 157 Now accept 2-D character array input. | |
| 158 | |
| 159 strsplit: Now accepts 2-D character array input. | |
| 13262 | 160 |
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161 ** Geometry functions derived from Qhull (convhull, delaunay, voronoi) |
| 14082 | 162 have been revamped. The options passed to the underlying qhull |
| 163 command have been changed for better results or for Matlab | |
| 164 compatibility. | |
| 165 | |
| 166 convhull: Default options are "Qt" for 2D, 3D, 4D inputs | |
| 167 Default options are "Qt Qx" for 5D and higher | |
| 168 | |
| 169 delaunay: Default options are "Qt Qbb Qc Qz" for 2D and 3D inputs | |
| 170 Default options are "Qt Qbb Qc Qx" for 4D and higher | |
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171 |
| 14082 | 172 voronoi: No default arguments |
| 173 | |
| 174 ** Date/Time functions updated. Millisecond support with FFF format | |
| 175 string now supported. | |
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176 |
| 14082 | 177 datestr: Numerical formats 21, 22, 29 changed to match Matlab. |
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178 Now accepts cellstr input. |
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179 |
| 14082 | 180 ** The following warning IDs have been removed: |
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181 |
| 14082 | 182 Octave:associativity-change |
| 183 Octave:complex-cmp-ops | |
| 184 Octave:empty-list-elements | |
| 185 Octave:fortran-indexing | |
| 186 Octave:precedence-change | |
| 187 | |
| 188 ** The warning ID Octave:string-concat has been renamed to | |
| 189 Octave:mixed-string-concat. | |
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190 |
| 14082 | 191 ** Octave now includes the following Matlab-compatible preference |
| 192 functions: | |
| 13262 | 193 |
| 14082 | 194 addpref getpref ispref rmpref setpref |
| 13262 | 195 |
| 14082 | 196 ** The following Matlab-compatible handle graphics functions have been |
| 197 added: | |
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198 |
| 14082 | 199 guidata uipanel uitoolbar |
| 200 guihandles uipushtool uiwait | |
| 201 uicontextmenu uiresume waitfor | |
| 202 uicontrol uitoggletool | |
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203 |
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204 The uiXXX functions above are experimental. |
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205 |
| 14082 | 206 Except for uiwait and uiresume, the uiXXX functions are not |
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207 supported with the FLTK+OpenGL graphics toolkit. |
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208 |
| 14082 | 209 The gnuplot graphics toolkit does not support any of the uiXXX |
| 210 functions nor the waitfor function. | |
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211 |
| 14082 | 212 ** New keyword parfor (parallel for loop) is now recognized as a valid |
| 213 keyword. Implementation, however, is still mapped to an ordinary | |
| 214 for loop. | |
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215 |
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216 ** Other new functions added in 3.6.0: |
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217 |
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218 bicg nthargout usejava |
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219 is_dq_string narginchk waitbar |
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220 is_sq_string python zscore |
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221 is_function_handle register_graphics_toolkit |
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222 loaded_graphics_toolkits recycle |
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223 |
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224 ** Deprecated functions. |
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225 |
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226 The following functions were deprecated in Octave 3.2 and have been |
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227 removed from Octave 3.6. |
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228 |
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229 create_set spcholinv splu |
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230 dmult spcumprod spmax |
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231 iscommand spcumsum spmin |
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232 israwcommand spdet spprod |
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233 lchol spdiag spqr |
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234 loadimage spfind spsum |
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235 mark_as_command sphcat spsumsq |
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236 mark_as_rawcommand spinv spvcat |
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237 spatan2 spkron str2mat |
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238 spchol splchol unmark_command |
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239 spchol2inv split unmark_rawcommand |
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240 |
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241 The following functions have been deprecated in Octave 3.6 and will |
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242 be removed from Octave 3.10 (or whatever version is the second major |
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243 release after 3.6): |
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244 |
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245 cut is_duplicate_entry |
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246 cor polyderiv |
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247 corrcoef shell_cmd |
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248 __error_text__ studentize |
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249 error_text sylvester_matrix |
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250 |
|
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251 ** The following functions have been modified for Matlab compatibility: |
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252 |
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253 randperm |
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254 |
| 13251 | 255 Summary of important user-visible changes for version 3.4.3: |
| 256 ----------------------------------------------------------- | |
| 257 | |
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258 ** Octave 3.4.3 is a bug fixing release. |
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259 |
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260 Summary of important user-visible changes for version 3.4.2: |
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261 ----------------------------------------------------------- |
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262 |
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263 ** Octave 3.4.2 fixes some minor installation problems that affected |
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264 version 3.4.1. |
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265 |
| 12709 | 266 Summary of important user-visible changes for version 3.4.1: |
| 267 ----------------------------------------------------------- | |
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268 |
| 12709 | 269 ** Octave 3.4.1 is primarily a bug fixing release. |
| 270 | |
| 271 ** IMPORTANT note about binary incompatibility in this release: | |
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272 |
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273 Binary compatibility for all 3.4.x releases was originally planned, |
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274 but this is impossible for the 3.4.1 release due to a bug in the way |
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275 shared libraries were built in Octave 3.4.0. Because of this bug, |
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276 .oct files built for Octave 3.4.0 must be recompiled before they |
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277 will work with Octave 3.4.1. |
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278 |
| 12709 | 279 Given that there would be binary incompatibilities with shared |
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280 libraries going from Octave 3.4.0 to 3.4.1, the following |
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281 incompatible changes were also made in this release: |
| 12709 | 282 |
| 283 * The Perl Compatible Regular Expression (PCRE) library is now | |
| 284 required to build Octave. | |
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285 |
| 12712 | 286 * Octave's libraries and .oct files are now installed in |
| 287 subdirectories of $libdir instead of $libexecdir. | |
| 288 | |
| 12709 | 289 Any future Octave 3.4.x release versions should remain binary |
|
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290 compatible with Octave 3.4.1 as proper library versioning is now |
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291 being used as recommended by the libtool manual. |
| 12709 | 292 |
| 293 ** The following functions have been deprecated in Octave 3.4.1 and will | |
| 294 be removed from Octave 3.8 (or whatever version is the second major | |
| 295 release after 3.4): | |
| 296 | |
| 297 cquad is_duplicate_entry perror strerror | |
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298 |
| 12709 | 299 ** The following functions are new in 3.4.1: |
| 300 | |
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301 colstyle gmres iscolumn isrow mgorth nproc rectangle |
| 12709 | 302 |
| 303 ** The get_forge_pkg function is now private. | |
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304 |
| 12709 | 305 ** The rectangle_lw, rectangle_sw, triangle_lw, and triangle_sw |
| 306 functions are now private. | |
| 307 | |
| 308 ** The logistic_regression_derivatives and logistic_regression_likelihood | |
| 309 functions are now private. | |
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310 |
| 12739 | 311 ** ChangeLog files in the Octave sources are no longer maintained |
| 312 by hand. Instead, there is a single ChangeLog file generated from | |
| 313 the Mercurial version control commit messages. Older ChangeLog | |
| 314 information can be found in the etc/OLD-ChangeLogs directory in the | |
| 315 source distribution. | |
| 316 | |
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317 Summary of important user-visible changes for version 3.4: |
| 9352 | 318 --------------------------------------------------------- |
| 319 | |
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320 ** BLAS and LAPACK libraries are now required to build Octave. The |
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321 subset of the reference BLAS and LAPACK libraries has been removed |
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322 from the Octave sources. |
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323 |
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324 ** The ARPACK library is now distributed with Octave so it no longer |
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325 needs to be available as an external dependency when building |
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326 Octave. |
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327 |
| 10118 | 328 ** The `lookup' function was extended to be more useful for |
| 329 general-purpose binary searching. Using this improvement, the | |
| 330 ismember function was rewritten for significantly better | |
| 331 performance. | |
| 9352 | 332 |
| 333 ** Real, integer and logical matrices, when used in indexing, will now | |
| 334 cache the internal index_vector value (zero-based indices) when | |
| 335 successfully used as indices, eliminating the conversion penalty for | |
| 10118 | 336 subsequent indexing by the same matrix. In particular, this means it |
| 337 is no longer needed to avoid repeated indexing by logical arrays | |
| 338 using find for performance reasons. | |
| 9888 | 339 |
| 10118 | 340 ** Logical matrices are now treated more efficiently when used as |
| 341 indices. Octave will keep the index as a logical mask unless the | |
| 342 ratio of true elements is small enough, using a specialized | |
| 343 code. Previously, all logical matrices were always first converted | |
| 344 to index vectors. This results in savings in both memory and | |
| 345 computing time. | |
| 9480 | 346 |
| 10118 | 347 ** The `sub2ind' and `ind2sub' functions were reimplemented as compiled |
| 348 functions for better performance. These functions are now faster, | |
| 349 can deliver more economized results for ranges, and can reuse the | |
| 350 index cache mechanism described in previous paragraph. | |
| 351 | |
| 352 ** The built-in function equivalents to associative operators (`plus', | |
| 353 `times', `mtimes', `and', and `or') have been extended to accept | |
| 354 multiple arguments. This is especially useful for summing | |
| 355 (multiplying, etc.) lists of objects (of possibly distinct types): | |
| 9408 | 356 |
| 9449 | 357 matrix_sum = plus (matrix_list{:}); |
| 358 | |
| 10118 | 359 ** An FTP object type based on libcurl has been implemented. These |
| 360 objects allow ftp connections, downloads and uploads to be | |
| 361 managed. For example, | |
| 9880 | 362 |
| 10118 | 363 fp = ftp ("ftp.octave.org); |
| 364 cd (fp, "gnu/octave"); | |
| 365 mget (fp, "octave-3.2.3.tar.bz2"); | |
| 366 close (fp); | |
| 9880 | 367 |
| 10118 | 368 ** The default behavior of `assert (observed, expected)' has been |
| 369 relaxed to employ less strict checking that does not require the | |
| 370 internals of the values to match. This avoids previously valid | |
| 371 tests from breaking due to new internal classes introduced in future | |
| 372 Octave versions. | |
| 9449 | 373 |
| 374 For instance, all of these assertions were true in Octave 3.0.x | |
| 375 but false in 3.2.x due to new optimizations and improvements: | |
| 376 | |
| 377 assert (2*linspace (1, 5, 5), 2*(1:5)) | |
| 378 assert (zeros (0, 0), []) | |
| 379 assert (2*ones (1, 5), (2) (ones (1,5))) | |
| 9462 | 380 |
| 10118 | 381 ** The behavior of library functions `ismatrix', `issquare', and |
| 382 `issymmetric' has been changed for better consistency. | |
| 9873 | 383 |
| 10292 | 384 * The `ismatrix' function now returns true for all numeric, |
|
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385 logical and character 2-D or N-D matrices. Previously, `ismatrix' |
| 10292 | 386 returned false if the first or second dimension was zero. |
| 387 Hence, `ismatrix ([])' was false, | |
| 388 while `ismatrix (zeros (1,2,0))' was true. | |
| 9873 | 389 |
| 10118 | 390 * The `issquare' function now returns a logical scalar, and is |
| 391 equivalent to the expression | |
| 392 | |
| 393 ismatrix (x) && ndims (x) == 2 && rows (x) == columns (x) | |
| 394 | |
| 395 The dimension is no longer returned. As a result, `issquare ([])' | |
| 396 now yields true. | |
| 9873 | 397 |
| 10118 | 398 * The `issymmetric' function now checks for symmetry instead of |
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399 Hermitianness. For the latter, ishermitian was created. Also, |
| 10118 | 400 logical scalar is returned rather than the dimension, so |
| 401 `issymmetric ([])' is now true. | |
| 9873 | 402 |
| 10118 | 403 ** Function handles are now aware of overloaded functions. If a |
| 404 function is overloaded, the handle determines at the time of its | |
| 405 reference which function to call. A non-overloaded version does not | |
| 406 need to exist. | |
| 9873 | 407 |
| 10118 | 408 ** Overloading functions for built-in classes (double, int8, cell, |
| 409 etc.) is now compatible with Matlab. | |
| 9408 | 410 |
| 10323 | 411 ** Function handles can now be compared with the == and != operators, |
| 412 as well as the `isequal' function. | |
| 413 | |
| 10118 | 414 ** Performance of concatenation (using []) and the functions `cat', |
| 415 `horzcat', and `vertcat' has been improved for multidimensional | |
| 416 arrays. | |
| 10117 | 417 |
| 9547 | 418 ** The operation-assignment operators +=, -=, *= and /= now behave more |
| 10118 | 419 efficiently in certain cases. For instance, if M is a matrix and S a |
| 420 scalar, then the statement | |
| 9547 | 421 |
| 10118 | 422 M += S; |
| 9547 | 423 |
| 10118 | 424 will operate on M's data in-place if it is not shared by another |
| 425 variable, usually increasing both time and memory efficiency. | |
| 9547 | 426 |
| 9558 | 427 Only selected common combinations are affected, namely: |
| 9547 | 428 |
| 429 matrix += matrix | |
| 430 matrix -= matrix | |
| 9558 | 431 matrix .*= matrix |
| 432 matrix ./= matrix | |
| 433 | |
| 9547 | 434 matrix += scalar |
| 435 matrix -= scalar | |
| 436 matrix *= scalar | |
| 437 matrix /= scalar | |
| 9558 | 438 |
| 9552 | 439 logical matrix |= logical matrix |
| 440 logical matrix &= logical matrix | |
| 9547 | 441 |
| 10118 | 442 where matrix and scalar belong to the same class. The left-hand |
| 443 side must be a simple variable reference. | |
| 9888 | 444 |
| 10118 | 445 Moreover, when unary operators occur in expressions, Octave will |
| 446 also try to do the operation in-place if it's argument is a | |
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447 temporary expression. |
| 9589 | 448 |
| 10118 | 449 ** The effect of comparison operators (<, >, <=, and >=) applied to |
| 450 complex numbers has changed to be consistent with the strict | |
| 451 ordering defined by the `max', `min', and `sort' functions. More | |
| 452 specifically, complex numbers are compared by lexicographical | |
| 453 comparison of the pairs `[abs(z), arg(z)]'. Previously, only real | |
| 14188 | 454 parts were compared; this can be trivially achieved by converting |
| 455 the operands to real values with the `real' function. | |
| 9547 | 456 |
| 10118 | 457 ** The automatic simplification of complex computation results has |
| 458 changed. Octave will now simplify any complex number with a zero | |
| 459 imaginary part or any complex matrix with all elements having zero | |
| 460 imaginary part to a real value. Previously, this was done only for | |
| 461 positive zeros. Note that the behavior of the complex function is | |
| 462 unchanged and it still produces a complex value even if the | |
| 463 imaginary part is zero. | |
| 9826 | 464 |
| 10118 | 465 ** As a side effect of code refactoring in liboctave, the binary |
| 466 logical operations are now more easily amenable to compiler | |
| 467 optimizations and are thus significantly faster. | |
| 9595 | 468 |
| 10118 | 469 ** Octave now allows user-defined `subsasgn' methods to optimize out |
| 470 redundant copies. For more information, see the manual. | |
| 9595 | 471 |
| 10453 | 472 ** More efficient matrix division handling. Octave is now able to |
| 10118 | 473 handle the expressions |
| 9664 | 474 |
|
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475 M' \ V |
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476 M.' \ V |
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477 V / M |
| 9664 | 478 |
| 10118 | 479 (M is a matrix and V is a vector) more efficiently in certain cases. |
| 480 In particular, if M is triangular, all three expressions will be | |
| 481 handled by a single call to xTRTRS (from LAPACK), with appropriate | |
| 10453 | 482 flags. Previously, all three expressions required a physical |
| 10118 | 483 transpose of M. |
| 9664 | 484 |
| 10118 | 485 ** More efficient handling of certain mixed real-complex matrix |
| 486 operations. For instance, if RM is a real matrix and CM a complex | |
| 487 matrix, | |
| 9664 | 488 |
| 10118 | 489 RM * CM |
| 9664 | 490 |
| 491 can now be evaluated either as | |
| 492 | |
| 493 complex (RM * real (CM), RM * imag (CM)) | |
| 494 | |
| 495 or as | |
| 496 | |
| 497 complex (RM) * CM, | |
| 498 | |
| 10453 | 499 depending on the dimensions. The first form requires more |
| 500 temporaries and copying, but halves the FLOP count, which normally | |
| 501 brings better performance if RM has enough rows. Previously, the | |
| 502 second form was always used. | |
| 9664 | 503 |
| 11111 | 504 Matrix division is similarly affected. |
| 9664 | 505 |
| 10118 | 506 ** More efficient handling of triangular matrix factors returned from |
| 507 factorizations. The functions for computing QR, LU and Cholesky | |
| 508 factorizations will now automatically return the triangular matrix | |
| 509 factors with proper internal matrix_type set, so that it won't need | |
| 510 to be computed when the matrix is used for division. | |
| 9717 | 511 |
| 10118 | 512 ** The built-in `sum' function now handles the non-native summation |
| 513 (i.e., double precision sum of single or integer inputs) more | |
| 514 efficiently, avoiding a temporary conversion of the whole input | |
| 515 array to doubles. Further, `sum' can now accept an extra option | |
| 516 argument, using a compensated summation algorithm rather than a | |
| 517 straightforward sum, which significantly improves precision if lots | |
| 518 of cancellation occurs in the summation. | |
| 9717 | 519 |
| 10118 | 520 ** The built-in `bsxfun' function now uses optimized code for certain |
| 521 cases where built-in operator handles are passed in. Namely, the | |
| 522 optimizations concern the operators `plus', `minus', `times', | |
| 523 `ldivide', `rdivide', `power', `and', `or' (for logical arrays), | |
| 524 the relational operators `eq', `ne', `lt', `le', `gt', `ge', and the | |
| 525 functions `min' and `max'. Optimizations only apply when both | |
| 526 operands are of the same built-in class. Mixed real/complex and | |
| 527 single/double operations will first convert both operands to a | |
| 528 common type. | |
| 9745 | 529 |
| 10118 | 530 ** The `strfind' and `strrep' functions now have compiled |
| 531 implementations, facilitating significantly more efficient searching | |
| 532 and replacing in strings, especially with longer patterns. The code | |
| 533 of `strcat' has been vectorized and is now much more efficient when | |
| 534 many strings are concatenated. The `strcmpi' and `strncmpi' | |
| 535 functions are now built-in functions, providing better performance. | |
|
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536 |
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537 ** 'str2double' now has a compiled implementation and the API conforms |
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538 to Matlab. The additional Octave-specific features of returning a |
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539 boolean matrix indicating which elements were successfully converted |
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540 has been removed. |
| 10208 | 541 |
| 10453 | 542 ** Matlab-style ignoring input and output function arguments using |
| 11111 | 543 tilde (~) is now supported. Ignored output arguments may be |
| 544 detected from a function using the built-in function `isargout'. | |
| 545 For more details, consult the manual. | |
| 10886 | 546 |
| 10453 | 547 ** The list datatype, deprecated since the introduction of cells, has |
| 548 been removed. | |
| 10276 | 549 |
| 10453 | 550 ** The accumarray function has been optimized and is now significantly |
| 551 faster in certain important cases. | |
| 10054 | 552 |
| 10292 | 553 ** The behavior of isreal and isnumeric functions was changed to be more |
| 554 Matlab-compatible. | |
| 555 | |
| 10406 | 556 ** The integer math & conversion warnings (Octave:int-convert-nan, |
| 557 Octave:int-convert-non-int-val, Octave:int-convert-overflow, | |
| 11111 | 558 Octave:int-math-overflow) have been removed. |
| 10406 | 559 |
| 10453 | 560 ** rem and mod are now built-in functions. They also handle integer |
| 561 types efficiently using integer arithmetic. | |
| 10437 | 562 |
| 10536 | 563 ** Sparse indexing and indexed assignment has been mostly rewritten. |
| 564 Since Octave uses compressed column storage for sparse matrices, | |
| 565 major attention is devoted to operations manipulating whole columns. | |
| 566 Such operations are now significantly faster, as well as some other | |
| 567 important cases. | |
| 568 | |
| 569 Further, it is now possible to pre-allocate a sparse matrix and | |
| 570 subsequently fill it by assignments, provided they meet certain | |
| 571 conditions. For more information, consult the `spalloc' function, | |
| 572 which is no longer a mere dummy. Consequently, nzmax and nnz are no | |
| 11111 | 573 longer always equal in Octave. Octave may also produce a matrix |
| 574 with nnz < nzmax as a result of other operations, so you should | |
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575 consistently use nnz unless you really want to use nzmax (i.e., the |
| 11111 | 576 space allocated for nonzero elements). |
| 10536 | 577 |
| 578 Sparse concatenation is also affected, and concatenating sparse | |
| 579 matrices, especially larger collections, is now significantly more | |
| 11111 | 580 efficient. This applies to both the [] operator and the |
| 10536 | 581 cat/vertcat/horzcat functions. |
| 582 | |
| 11111 | 583 ** It is now possible to optionally employ the xGESDD LAPACK drivers |
| 14188 | 584 for computing the singular value decomposition using svd, instead |
| 11111 | 585 of the default xGESVD, using the configuration pseudo-variable |
| 586 svd_driver. The xGESDD driver can be up to 6x times faster when | |
| 587 singular vectors are requested, but is reported to be somewhat less | |
| 10639 | 588 robust on highly ill-conditioned matrices. |
| 589 | |
| 590 ** Configuration pseudo-variables, such as page_screen_output or | |
| 591 confirm_recursive_rmdir (or the above mentioned svd_driver), now | |
| 592 accept a "local" option as second argument, requesting the change | |
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593 to be undone when the current function returns: |
| 10639 | 594 |
| 595 function [status, msg] = rm_rf (dir) | |
| 596 confirm_recursive_rmdir (false, "local"); | |
| 597 [status, msg] = rmdir (dir, "s"); | |
| 598 ... | |
| 599 endfunction | |
| 600 | |
| 601 Upon return, confirm_recursive_rmdir will be restored to the value | |
| 602 it had on entry to the function, even if there were subsequent | |
| 603 changes to the variable in function rm_rf or any of the functions | |
| 604 it calls. | |
| 605 | |
| 11111 | 606 ** pkg now accepts a -forge option for downloading and installing |
| 607 packages from Octave Forge automatically. For example, | |
| 10774 | 608 |
| 609 pkg install -forge general | |
| 610 | |
| 11111 | 611 will automatically download the latest release of the general |
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612 package and attempt to install it. No automatic resolving of |
| 11111 | 613 dependencies is provided. Further, |
| 10639 | 614 |
| 10774 | 615 pkg list -forge |
| 616 | |
| 617 can be used to list all available packages. | |
| 618 | |
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619 ** The internal data representation of structs has been completely |
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620 rewritten to make certain optimizations feasible. The field data |
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621 can now be shared between structs with equal keys but different |
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622 dimensions or values, making operations that preserve the fields |
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623 faster. Economized storage is now used for scalar structs (just |
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624 like most other scalars), making their usage more |
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625 memory-efficient. Certain array-like operations on structs |
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626 (concatenation, uniform cellfun, num2cell) have gained a |
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627 significant speed-up. Additionally, the octave_scalar_map class |
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628 now provides a simpler interface to work with scalar structs within |
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629 a C++ DLD function. |
| 10639 | 630 |
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631 ** Two new formats are available for displaying numbers: |
| 11111 | 632 |
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633 format short eng |
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634 format long eng |
| 11111 | 635 |
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636 Both display numbers in engineering notation, i.e., mantissa + |
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637 exponent where the exponent is a multiple of 3. |
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638 |
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639 ** The following functions are new in Octave 3.4: |
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640 accumdim erfcx nfields pqpnonneg uigetdir |
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641 bitpack fileread nth_element quadcc uigetfile |
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642 bitunpack fminbnd onCleanup randi uiputfile |
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643 blkmm fskipl pbaspect repelems uimenu |
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644 cbrt ifelse pie3 reset whitebg |
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645 curl ishermitian powerset rsf2csf |
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646 chop isindex ppder saveas |
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647 daspect luupdate ppint strread |
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648 divergence merge ppjumps textread |
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649 |
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650 ** Using the image function to view images with external programs such |
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651 as display, xv, and xloadimage is no longer supported. The |
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652 image_viewer function has also been removed. |
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653 |
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654 ** The behavior of struct assignments to non-struct values has been |
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655 changed. Previously, it was possible to overwrite an arbitrary |
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656 value: |
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657 |
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658 a = 1; |
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659 a.x = 2; |
| 10873 | 660 |
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661 This is no longer possible unless a is an empty matrix or cell |
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662 array. |
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663 |
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664 ** The dlmread function has been extended to allow specifying a custom |
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665 value for empty fields. |
| 10829 | 666 |
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667 ** The dlmread and dlmwrite functions have been modified to accept |
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668 file IDs (as returned by fopen) in addition to file names. |
| 11111 | 669 |
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670 ** Octave can now optimize away the interpreter overhead of an |
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671 anonymous function handle, if the function simply calls another |
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672 function or handle with some of its parameters bound to certain |
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673 values. Example: |
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674 |
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675 f = @(x) sum (x, 1); |
| 10966 | 676 |
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677 When f is called, the call is forwarded to @sum with the constant 1 |
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678 appended, and the anonymous function call does not occur on the |
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12413
diff
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|
679 call stack. |
| 10829 | 680 |
| 12424 | 681 ** For compatibility with Matlab, mu2lin (x) is now equivalent to |
| 682 mu2lin (x, 0). | |
| 683 | |
| 684 ** The new function `history_control' may be used to control the way | |
| 685 command lines are added to the history list when Octave is using | |
| 686 readline for command-line editing. For example | |
| 687 | |
| 688 history_control ("ignoredups") | |
| 689 | |
| 690 tells Octave to avoid adding duplicate lines to the history list. | |
| 691 | |
| 692 ** Octave now uses the gnulib library for improved portability and to | |
| 693 avoid bugs in operating system functions. | |
| 694 | |
|
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parents:
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|
695 ** Deprecated functions. |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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parents:
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|
696 |
|
8ea4cf59c41b
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parents:
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|
697 The following functions were deprecated in Octave 3.0 and have been |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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diff
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|
698 removed from Octave 3.4. |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
699 |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
700 beta_cdf geometric_pdf pascal_pdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
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|
701 beta_inv geometric_rnd pascal_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
702 beta_pdf hypergeometric_cdf poisson_cdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
703 beta_rnd hypergeometric_inv poisson_inv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
704 binomial_cdf hypergeometric_pdf poisson_pdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
705 binomial_inv hypergeometric_rnd poisson_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
706 binomial_pdf intersection polyinteg |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
707 binomial_rnd is_bool setstr |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
708 chisquare_cdf is_complex struct_contains |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
709 chisquare_inv is_list struct_elements |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
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changeset
|
710 chisquare_pdf is_matrix t_cdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
711 chisquare_rnd is_scalar t_inv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
712 clearplot is_square t_pdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
713 clg is_stream t_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
714 com2str is_struct uniform_cdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
715 exponential_cdf is_symmetric uniform_inv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
716 exponential_inv is_vector uniform_pdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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|
717 exponential_pdf isstr uniform_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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|
718 exponential_rnd lognormal_cdf weibcdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
719 f_cdf lognormal_inv weibinv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
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changeset
|
720 f_inv lognormal_pdf weibpdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
721 f_pdf lognormal_rnd weibrnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
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changeset
|
722 f_rnd meshdom weibull_cdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
723 gamma_cdf normal_cdf weibull_inv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
724 gamma_inv normal_inv weibull_pdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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|
725 gamma_pdf normal_pdf weibull_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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11111
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changeset
|
726 gamma_rnd normal_rnd wiener_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
727 geometric_cdf pascal_cdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
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11111
diff
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|
728 geometric_inv pascal_inv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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parents:
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diff
changeset
|
729 |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
730 The following functions were deprecated in Octave 3.2 and will |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
731 be removed from Octave 3.6 (or whatever version is the second major |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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|
732 release after 3.2): |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
733 |
|
11390
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
734 create_set spcholinv splu |
|
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
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diff
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|
735 dmult spcumprod spmax |
|
7ca273af4309
Deprecate sphcat and spvcat functions.
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parents:
11330
diff
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|
736 iscommand spcumsum spmin |
|
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
737 israwcommand spdet spprod |
|
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
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diff
changeset
|
738 lchol spdiag spqr |
|
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
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diff
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|
739 loadimage spfind spsum |
|
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
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diff
changeset
|
740 mark_as_command sphcat spsumsq |
|
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
changeset
|
741 mark_as_rawcommand spinv spvcat |
|
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
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diff
changeset
|
742 spatan2 spkron str2mat |
|
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
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|
743 spchol splchol unmark_command |
|
7ca273af4309
Deprecate sphcat and spvcat functions.
Rik <octave@nomad.inbox5.com>
parents:
11330
diff
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|
744 spchol2inv split unmark_rawcommand |
|
11112
8ea4cf59c41b
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|
745 |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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parents:
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diff
changeset
|
746 The following functions have been deprecated in Octave 3.4 and will |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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parents:
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diff
changeset
|
747 be removed from Octave 3.8 (or whatever version is the second major |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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parents:
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|
748 release after 3.4): |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
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parents:
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diff
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|
749 |
|
14354
55bb8c902a4d
maint: Remove deprecated functions from dev branch for next (3.8) release.
Rik <octave@nomad.inbox5.com>
parents:
14294
diff
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|
750 autocor cellidx gammai is_global replot values |
|
55bb8c902a4d
maint: Remove deprecated functions from dev branch for next (3.8) release.
Rik <octave@nomad.inbox5.com>
parents:
14294
diff
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|
751 autocov dispatch glpkmex krylovb saveimage |
|
55bb8c902a4d
maint: Remove deprecated functions from dev branch for next (3.8) release.
Rik <octave@nomad.inbox5.com>
parents:
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|
752 betai fstat intwarning perror strerror |
|
11112
8ea4cf59c41b
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parents:
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|
753 |
|
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
754 Summary of important user-visible changes for version 3.2: |
| 5913 | 755 --------------------------------------------------------- |
| 2452 | 756 |
| 8737 | 757 ** Compatibility with Matlab graphics has been improved. |
| 6329 | 758 |
|
8070
3b53b25e2550
Add data sources and line series
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diff
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|
759 The hggroup object and associated listener callback functions have |
| 8737 | 760 been added allowing the inclusion of group objects. Data sources |
|
8070
3b53b25e2550
Add data sources and line series
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diff
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|
761 have been added to these group objects such that |
|
3b53b25e2550
Add data sources and line series
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|
762 |
|
3b53b25e2550
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|
763 x = 0:0.1:10; |
|
3b53b25e2550
Add data sources and line series
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diff
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|
764 y = sin (x); |
|
3b53b25e2550
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|
765 plot (x, y, "ydatasource", "y"); |
|
3b53b25e2550
Add data sources and line series
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|
766 for i = 1 : 100 |
|
3b53b25e2550
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|
767 pause(0.1) |
|
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|
768 y = sin (x + 0.1 * i); |
| 14188 | 769 refreshdata (); |
|
8070
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Add data sources and line series
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|
770 endfor |
|
3b53b25e2550
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|
771 |
| 8737 | 772 works as expected. This capability has be used to introduce |
|
9031
1052a66078cf
Documentation cleanup of top-level Octave directory (READMEs, INSTALL)
Rik <rdrider0-list@yahoo.com>
parents:
8932
diff
changeset
|
773 stem-series, bar-series, etc., objects for better Matlab |
| 8737 | 774 compatibility. |
| 775 | |
| 776 ** New graphics functions: | |
| 777 | |
|
11576
8ac9687dbe9f
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diff
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|
778 addlistener ezcontour gcbo refresh |
|
8ac9687dbe9f
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|
779 addproperty ezcontourf ginput refreshdata |
|
8ac9687dbe9f
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|
780 allchild ezmesh gtext specular |
|
8ac9687dbe9f
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|
781 available_graphics_toolkits ezmeshc intwarning surfl |
|
8ac9687dbe9f
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|
782 graphics_toolkit ezplot ishghandle trisurf |
|
8ac9687dbe9f
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|
783 cla ezplot3 isocolors waitforbuttonpress |
|
8ac9687dbe9f
rename backend to graphics_toolkit
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diff
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|
784 clabel ezpolar isonormals |
|
8ac9687dbe9f
rename backend to graphics_toolkit
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diff
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|
785 comet ezsurf isosurface |
|
8ac9687dbe9f
rename backend to graphics_toolkit
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11562
diff
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|
786 dellistener findall linkprop |
|
8ac9687dbe9f
rename backend to graphics_toolkit
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|
787 diffuse gcbf plotmatrix |
|
8070
3b53b25e2550
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|
788 |
| 8737 | 789 ** New experimental OpenGL/FLTK based plotting system. |
| 790 | |
| 791 An experimental plotting system based on OpenGL and the FLTK | |
|
11576
8ac9687dbe9f
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John W. Eaton <jwe@octave.org>
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11562
diff
changeset
|
792 toolkit is now part of Octave. This graphics toolkit is disabled by |
| 8737 | 793 default. You can switch to using it with the command |
|
8070
3b53b25e2550
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|
794 |
|
11576
8ac9687dbe9f
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parents:
11562
diff
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|
795 graphics_toolkit ("fltk") |
|
8070
3b53b25e2550
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|
796 |
|
3b53b25e2550
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diff
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|
797 for all future figures or for a particular figure with the command |
|
3b53b25e2550
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|
798 |
|
11576
8ac9687dbe9f
rename backend to graphics_toolkit
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|
799 graphics_toolkit (h, "fltk") |
|
8070
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|
800 |
| 11139 | 801 where "h" is a valid figure handle. |
|
8070
3b53b25e2550
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|
802 |
| 8737 | 803 ** Functions providing direct access to gnuplot have been removed. |
| 804 | |
|
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
805 The functions __gnuplot_plot__, __gnuplot_set__, __gnuplot_raw__, |
|
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
806 __gnuplot_show__, __gnuplot_replot__, __gnuplot_splot__, |
| 8737 | 807 __gnuplot_save_data__ and __gnuplot_send_inline_data__ have been |
| 808 removed from Octave. These function were incompatible with the | |
| 809 high level graphics handle code. | |
| 6329 | 810 |
| 8885 | 811 ** The Control, Finance and Quaternion functions have been removed. |
| 812 | |
| 813 These functions are now available as separate packages from | |
| 814 | |
| 815 http://octave.sourceforge.net/packages.html | |
| 816 | |
| 817 and can be reinstalled using the Octave package manager (see | |
| 818 the pkg function). | |
| 819 | |
| 820 ** Specific sparse matrix functions removed. | |
| 821 | |
| 822 The following functions, which handled only sparse matrices have | |
| 823 been removed. Instead of calling these functions directly, you | |
| 824 should use the corresponding function without the "sp" prefix. | |
| 8737 | 825 |
| 8885 | 826 spatan2 spcumsum spkron spprod |
| 827 spchol spdet splchol spqr | |
| 828 spchol2inv spdiag splu spsum | |
| 829 spcholinv spfind spmax spsumsqk | |
| 830 spcumprod spinv spmin | |
| 831 | |
| 832 ** Improvements to the debugger. | |
| 833 | |
| 834 The interactive debugging features have been improved. Stopping | |
| 835 on statements with dbstop should work correctly now. Stepping | |
| 836 into and over functions, and stepping one statement at a time | |
| 837 (with dbstep) now works. Moving up and down the call stack with | |
| 838 dbup and dbdown now works. The dbstack function is now available | |
| 839 to print the current function call stack. The new dbquit function | |
| 840 is available to exit the debugging mode. | |
| 841 | |
| 842 ** Improved traceback error messages. | |
| 843 | |
| 844 Traceback error messages are much more concise and easier to | |
| 845 understand. They now display information about the function call | |
| 846 stack instead of the stack of all statements that were active at | |
| 847 the point of the error. | |
|
8014
44d206ae68c9
improve fsolve compatibility
John W. Eaton <jwe@octave.org>
parents:
7990
diff
changeset
|
848 |
| 8737 | 849 ** Object Oriented Programming. |
|
8405
d79dfbff2f9d
document new norm features in NEWS
Jaroslav Hajek <highegg@gmail.com>
parents:
8396
diff
changeset
|
850 |
| 8737 | 851 Octave now includes OOP features and the user can create their own |
| 852 class objects and overloaded functions and operators. For | |
| 853 example, all methods of a class called "myclass" will be found in | |
| 854 a directory "@myclass" on the users path. The class specific | |
| 855 versions of functions and operators take precedence over the | |
| 856 generic versions of these functions. | |
| 857 | |
| 858 New functions related to OOP include | |
| 7189 | 859 |
| 8737 | 860 class inferiorto isobject loadobj methods superiorto |
| 861 | |
| 862 See the Octave manual for more details. | |
| 7038 | 863 |
| 8747 | 864 ** Parsing of Command-style Functions. |
| 865 | |
| 866 Octave now parses command-style functions without needing to first | |
| 867 declare them with "mark_as_command". The rules for recognizing a | |
| 868 command-style function calls are | |
| 869 | |
| 870 * A command must appear as the first word in a statement, | |
| 871 followed by a space. | |
| 872 | |
| 873 * The first character after the space must not be '=' or '(' | |
| 874 | |
| 875 * The next token after the space must not look like a binary | |
| 876 operator. | |
| 877 | |
| 878 These rules should be mostly compatible with the way Matlab parses | |
| 879 command-style function calls and allow users to define commands in | |
| 880 .m files without having to mark them as commands. | |
| 881 | |
| 882 Note that previous versions of Octave allowed expressions like | |
| 883 | |
| 884 x = load -text foo.dat | |
| 885 | |
| 886 but an expression like this will now generate a parse error. In | |
| 887 order to assign the value returned by a function to a variable, | |
| 888 you must use the normal function call syntax: | |
| 889 | |
| 890 x = load ("-text", "foo.dat"); | |
| 891 | |
| 8737 | 892 ** Block comments. |
| 893 | |
| 8747 | 894 Commented code can be between matching "#{" and "#}" or "%{" and |
| 895 "%}" markers, even if the commented code spans several line. This | |
| 896 allows blocks code to be commented, without needing to comment | |
| 897 each line. For example, | |
| 5814 | 898 |
| 8747 | 899 function [s, t] = func (x, y) |
| 900 s = 2 * x; | |
| 901 #{ | |
| 902 s *= y; | |
| 903 t = y + x; | |
| 904 #} | |
|
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
905 endfunction |
| 5814 | 906 |
| 8747 | 907 the lines "s *= y;" and "t = y + x" will not be executed. |
| 8737 | 908 |
|
12400
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don't warn about coercing nested functions to subfunctions if yyparse failed
John W. Eaton <jwe@octave.org>
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diff
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|
909 ** If any subfunction in a file ends with "end" or "endfunction", then |
|
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
John W. Eaton <jwe@octave.org>
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diff
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|
910 they all must end that way. Previously, Octave accepted |
|
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
John W. Eaton <jwe@octave.org>
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diff
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|
911 |
|
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
John W. Eaton <jwe@octave.org>
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diff
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|
912 function main () |
|
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
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diff
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|
913 ... |
|
5252f12537f8
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parents:
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diff
changeset
|
914 # no endfunction here. |
|
5252f12537f8
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|
915 function sub () |
|
5252f12537f8
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diff
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|
916 ... |
|
5252f12537f8
don't warn about coercing nested functions to subfunctions if yyparse failed
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diff
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|
917 endfunction |
|
5252f12537f8
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|
918 |
|
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|
919 but this is no longer allowed. |
|
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|
920 |
| 8737 | 921 ** Special treatment in the parser of expressions like "a' * b". |
| 2452 | 922 |
| 8737 | 923 In these cases the transpose is no longer explicitly formed and |
| 924 BLAS libraries are called with the transpose flagged, | |
| 925 significantly improving performance for these kinds of | |
| 926 operations. | |
|
8417
654bcfb937bf
Add the eigs and svds functions
David Bateman <dbateman@free.fr>
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diff
changeset
|
927 |
| 8737 | 928 ** Single Precision data type. |
| 2452 | 929 |
| 8737 | 930 Octave now includes a single precision data type. Single |
| 931 precision variables can be created with the "single" command, or | |
|
9034
52515efc50c0
Documentation cleanup on NEWS file
Rik <rdrider0-list@yahoo.com>
parents:
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diff
changeset
|
932 from functions like ones, eye, etc. For example, |
| 5995 | 933 |
| 8737 | 934 single (1) |
| 935 ones (2, 2, "single") | |
| 936 zeros (2, 2, "single") | |
| 937 eye (2, 2, "single") | |
| 938 Inf (2, 2, "single") | |
| 939 NaN (2, 2, "single") | |
| 940 NA (2, 2, "single") | |
| 7279 | 941 |
| 8737 | 942 all create single precision variables. For compatibility with |
| 943 Matlab, mixed double/single precision operators and functions | |
| 944 return single precision types. | |
| 945 | |
| 946 As a consequence of this addition to Octave the internal | |
|
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
947 representation of the double precision NA value has changed, and |
|
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
948 so users that make use of data generated by Octave with R or |
|
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
949 visa-versa are warned that compatibility might not be assured. |
| 7279 | 950 |
| 8737 | 951 ** Improved array indexing. |
| 952 | |
| 953 The underlying code used for indexing of arrays has been | |
|
9034
52515efc50c0
Documentation cleanup on NEWS file
Rik <rdrider0-list@yahoo.com>
parents:
9031
diff
changeset
|
954 completely rewritten and indexing is now significantly faster. |
| 8737 | 955 |
| 8755 | 956 ** Improved memory management. |
| 957 | |
| 958 Octave will now attempt to share data in some cases where previously | |
| 959 a copy would be made, such as certain array slicing operations or | |
|
9031
1052a66078cf
Documentation cleanup of top-level Octave directory (READMEs, INSTALL)
Rik <rdrider0-list@yahoo.com>
parents:
8932
diff
changeset
|
960 conversions between cells, structs and cs-lists. This usually reduces |
| 8755 | 961 both time and memory consumption. |
| 9128 | 962 Also, Octave will now attempt to detect and optimize usage of a vector |
| 963 as a stack, when elements are being repeatedly inserted at/removed from | |
| 964 the end of the vector. | |
| 8755 | 965 |
| 8738 | 966 ** Improved performance for reduction operations. |
| 967 | |
| 8755 | 968 The performance of the sum, prod, sumsq, cumsum, cumprod, any, all, |
| 969 max and min functions has been significantly improved. | |
| 8738 | 970 |
| 9006 | 971 ** Sorting and searching. |
| 972 | |
| 973 The performance of sort has been improved, especially when sorting | |
| 10453 | 974 indices are requested. An efficient built-in issorted |
| 975 implementation was added. The sortrows function now uses a more | |
|
12702
013cd94d8d7f
doc: Spelling fixes for various documentation files
John Bradshaw <john@johnbradshaw.org>
parents:
12698
diff
changeset
|
976 efficient algorithm, especially in the homogeneous case. The lookup |
| 10453 | 977 function is now a built-in function performing a binary search, |
| 978 optimized for long runs of close elements. Lookup also works with | |
| 979 cell arrays of strings. | |
| 9006 | 980 |
| 981 ** Range arithmetics | |
| 982 | |
| 10453 | 983 For some operations on ranges, Octave will attempt to keep the |
| 984 result as a range. These include negation, adding a scalar, | |
|
14093
050bc580cb60
doc: Various docstring improvements before 3.6.0 release.
Rik <octave@nomad.inbox5.com>
parents:
14082
diff
changeset
|
985 subtracting a scalar, and multiplying by a scalar. Ranges with zero |
| 10453 | 986 increment are allowed and can be constructed using the built-in |
| 987 function `ones'. | |
| 9006 | 988 |
| 989 ** Various performance improvements. | |
| 990 | |
| 10453 | 991 Performance of a number of other built-in operations and functions |
| 992 was improved, including: | |
| 9006 | 993 |
| 994 * logical operations | |
| 995 * comparison operators | |
| 996 * element-wise power | |
| 997 * accumarray | |
| 998 * cellfun | |
| 999 * isnan | |
| 1000 * isinf | |
| 1001 * isfinite | |
| 1002 * nchoosek | |
| 1003 * repmat | |
| 1004 * strcmp | |
| 1005 | |
| 8737 | 1006 ** 64-bit integer arithmetic. |
| 1007 | |
| 1008 Arithmetic with 64-bit integers (int64 and uint64 types) is fully | |
| 1009 supported, with saturation semantics like the other integer types. | |
| 1010 Performance of most integer arithmetic operations has been | |
| 1011 improved by using integer arithmetic directly. Previously, Octave | |
| 1012 performed integer math with saturation semantics by converting the | |
| 1013 operands to double precision, performing the operation, and then | |
| 1014 converting the result back to an integer value, truncating if | |
| 1015 necessary. | |
| 1016 | |
| 8885 | 1017 ** Diagonal and permutation matrices. |
| 1018 | |
| 1019 The interpreter can now treat diagonal and permutation matrices as | |
| 1020 special objects that store only the non-zero elements, rather than | |
| 1021 general full matrices. Therefore, it is now possible to construct | |
| 1022 and use these matrices in linear algebra without suffering a | |
| 1023 performance penalty due to storing large numbers of zero elements. | |
| 1024 | |
| 1025 ** Improvements to fsolve. | |
| 1026 | |
| 1027 The fsolve function now accepts an option structure argument (see | |
| 1028 also the optimset function). The INFO values returned from fsolve | |
| 1029 have changed to be compatible with Matlab's fsolve function. | |
| 1030 Additionally, fsolve is now able to solve overdetermined systems, | |
| 1031 complex-differentiable complex systems, systems with a sparse | |
| 1032 jacobian and can work in single precision if given single precision | |
|
9031
1052a66078cf
Documentation cleanup of top-level Octave directory (READMEs, INSTALL)
Rik <rdrider0-list@yahoo.com>
parents:
8932
diff
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|
1033 inputs. It can also be called recursively. |
| 8885 | 1034 |
| 8737 | 1035 ** Improvements to the norm function. |
| 1036 | |
| 1037 The norm function is now able to compute row or column norms of a | |
| 1038 matrix in a single call, as well as general matrix p-norms. | |
| 1039 | |
| 1040 ** New functions for computing some eigenvalues or singular values. | |
| 1041 | |
| 1042 The eigs and svds functions have been included in Octave. These | |
| 1043 functions require the ARPACK library (now distributed under a | |
| 1044 GPL-compatible license). | |
| 1045 | |
| 1046 ** New QR and Cholesky factorization updating functions. | |
|
8370
34960ba08a81
document more new features in the NEWS file
Jaroslav Hajek <highegg@gmail.com>
parents:
8292
diff
changeset
|
1047 |
| 8737 | 1048 choldelete cholshift qrdelete qrshift |
| 1049 cholinsert cholupdate qrinsert qrupdate | |
| 1050 | |
| 1051 ** New quadrature functions. | |
| 1052 | |
| 1053 dblquad quadgk quadv triplequad | |
| 1054 | |
| 8885 | 1055 ** New functions for reading and writing images. |
| 1056 | |
| 1057 The imwrite and imread functions have been included in Octave. | |
| 1058 These functions require the GraphicsMagick library. The new | |
| 1059 function imfinfo provides information about an image file (size, | |
| 1060 type, colors, etc.) | |
| 1061 | |
|
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allow multiple input event hook functions to be installed simultaneously
John W. Eaton <jwe@octave.org>
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diff
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|
1062 ** The input_event_hook function has been replaced by the pair of |
|
1500d0197484
allow multiple input event hook functions to be installed simultaneously
John W. Eaton <jwe@octave.org>
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9128
diff
changeset
|
1063 functions add_input_event_hook and remove_input_event_hook so that |
|
1500d0197484
allow multiple input event hook functions to be installed simultaneously
John W. Eaton <jwe@octave.org>
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9128
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|
1064 more than one hook function may be installed at a time. |
|
1500d0197484
allow multiple input event hook functions to be installed simultaneously
John W. Eaton <jwe@octave.org>
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diff
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|
1065 |
| 8737 | 1066 ** Other miscellaneous new functions. |
|
8370
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Jaroslav Hajek <highegg@gmail.com>
parents:
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diff
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|
1067 |
|
8932
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Add the 'histc' function
Soren Hauberg <hauberg@gmail.com>
parents:
8888
diff
changeset
|
1068 addtodate hypot reallog |
|
2d0f8692a82e
Add the 'histc' function
Soren Hauberg <hauberg@gmail.com>
parents:
8888
diff
changeset
|
1069 bicgstab idivide realpow |
| 9006 | 1070 cellslices info realsqrt |
| 1071 cgs interp1q rectint | |
| 1072 command_line_path isdebugmode regexptranslate | |
| 1073 contrast isfloat restoredefaultpath | |
| 1074 convn isstrprop roundb | |
| 1075 cummin log1p rundemos | |
| 1076 cummax lsqnonneg runlength | |
| 1077 datetick matlabroot saveobj | |
| 1078 display namelengthmax spaugment | |
| 1079 expm1 nargoutchk strchr | |
| 1080 filemarker pathdef strvcat | |
| 1081 fstat perl subspace | |
| 1082 full prctile symvar | |
| 1083 fzero quantile treelayout | |
| 1084 genvarname re_read_readline_init_file validatestring | |
| 1085 histc | |
|
8370
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document more new features in the NEWS file
Jaroslav Hajek <highegg@gmail.com>
parents:
8292
diff
changeset
|
1086 |
| 8885 | 1087 ** Changes to strcat. |
| 1088 | |
| 1089 The strcat function is now compatible with Matlab's strcat | |
| 1090 function, which removes trailing whitespace when concatenating | |
| 1091 character strings. For example | |
| 1092 | |
| 1093 strcat ('foo ', 'bar') | |
| 1094 ==> 'foobar' | |
| 1095 | |
| 1096 The new function cstrcat provides the previous behavior of | |
| 1097 Octave's strcat. | |
| 1098 | |
| 1099 ** Improvements to the help functions. | |
| 1100 | |
|
9034
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Rik <rdrider0-list@yahoo.com>
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|
1101 The help system has been mostly re-implemented in .m files to make |
| 8885 | 1102 it easier to modify. Performance of the lookfor function has been |
| 1103 greatly improved by caching the help text from all functions that | |
| 1104 are distributed with Octave. The pkg function has been modified | |
| 1105 to generate cache files for external packages when they are | |
| 1106 installed. | |
| 1107 | |
|
8888
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
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|
1108 ** Deprecated functions. |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
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|
1109 |
|
0c7b0049c023
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parents:
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changeset
|
1110 The following functions were deprecated in Octave 3.0 and will be |
|
11112
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1111 removed from Octave 3.4 (or whatever version is the second major |
|
8888
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1112 release after 3.0): |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
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parents:
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|
1113 |
|
11112
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1114 beta_cdf geometric_pdf pascal_pdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1115 beta_inv geometric_rnd pascal_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1116 beta_pdf hypergeometric_cdf poisson_cdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1117 beta_rnd hypergeometric_inv poisson_inv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1118 binomial_cdf hypergeometric_pdf poisson_pdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1119 binomial_inv hypergeometric_rnd poisson_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
1120 binomial_pdf intersection polyinteg |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
1121 binomial_rnd is_bool setstr |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
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11111
diff
changeset
|
1122 chisquare_cdf is_complex struct_contains |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
1123 chisquare_inv is_list struct_elements |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
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11111
diff
changeset
|
1124 chisquare_pdf is_matrix t_cdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1125 chisquare_rnd is_scalar t_inv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
1126 clearplot is_square t_pdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
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diff
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|
1127 clg is_stream t_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
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|
1128 com2str is_struct uniform_cdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
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diff
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|
1129 exponential_cdf is_symmetric uniform_inv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
1130 exponential_inv is_vector uniform_pdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
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|
1131 exponential_pdf isstr uniform_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
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|
1132 exponential_rnd lognormal_cdf weibcdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
1133 f_cdf lognormal_inv weibinv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
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diff
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|
1134 f_inv lognormal_pdf weibpdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
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diff
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|
1135 f_pdf lognormal_rnd weibrnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
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|
1136 f_rnd meshdom weibull_cdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
1137 gamma_cdf normal_cdf weibull_inv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
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|
1138 gamma_inv normal_inv weibull_pdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
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|
1139 gamma_pdf normal_pdf weibull_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
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|
1140 gamma_rnd normal_rnd wiener_rnd |
|
8888
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
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8885
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|
1141 geometric_cdf pascal_cdf |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
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|
1142 geometric_inv pascal_inv |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
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|
1143 |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
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|
1144 The following functions are now deprecated in Octave 3.2 and will |
|
11112
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
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1145 be removed from Octave 3.6 (or whatever version is the second major |
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8888
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
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1146 release after 3.2): |
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0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
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1147 |
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0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
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1148 create_set spcholinv spmax |
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0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
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1149 dmult spcumprod spmin |
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0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
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1150 iscommand spcumsum spprod |
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0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
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1151 israwcommand spdet spqr |
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0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
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1152 lchol spdiag spsum |
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0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
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1153 loadimage spfind spsumsq |
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0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
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1154 mark_as_command spinv str2mat |
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0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1155 mark_as_rawcommand spkron unmark_command |
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0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
1156 spatan2 splchol unmark_rawcommand |
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0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
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1157 spchol split |
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0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
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1158 spchol2inv splu |
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0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
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1159 |
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7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
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1160 See NEWS.3 for old news. |