Mercurial > hg > octave-lyh
annotate NEWS @ 11139:0dd95d1d57e6
update NEWS
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Fri, 22 Oct 2010 20:59:48 -0400 |
| parents | 8ea4cf59c41b |
| children | 92a7c136ab35 |
| rev | line source |
|---|---|
|
11112
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
1 Summary of important user-visible changes for version 3.4: |
| 9352 | 2 --------------------------------------------------------- |
| 3 | |
|
9799
cfd0aa788ae1
remove reference blas and lapack sources
John W. Eaton <jwe@octave.org>
parents:
9745
diff
changeset
|
4 ** BLAS and LAPACK libraries are now required to build Octave. The |
|
cfd0aa788ae1
remove reference blas and lapack sources
John W. Eaton <jwe@octave.org>
parents:
9745
diff
changeset
|
5 subset of the reference BLAS and LAPACK libraries has been removed |
|
cfd0aa788ae1
remove reference blas and lapack sources
John W. Eaton <jwe@octave.org>
parents:
9745
diff
changeset
|
6 from the Octave sources. |
|
cfd0aa788ae1
remove reference blas and lapack sources
John W. Eaton <jwe@octave.org>
parents:
9745
diff
changeset
|
7 |
| 10118 | 8 ** The `lookup' function was extended to be more useful for |
| 9 general-purpose binary searching. Using this improvement, the | |
| 10 ismember function was rewritten for significantly better | |
| 11 performance. | |
| 9352 | 12 |
| 13 ** Real, integer and logical matrices, when used in indexing, will now | |
| 14 cache the internal index_vector value (zero-based indices) when | |
| 15 successfully used as indices, eliminating the conversion penalty for | |
| 10118 | 16 subsequent indexing by the same matrix. In particular, this means it |
| 17 is no longer needed to avoid repeated indexing by logical arrays | |
| 18 using find for performance reasons. | |
| 9888 | 19 |
| 10118 | 20 ** Logical matrices are now treated more efficiently when used as |
| 21 indices. Octave will keep the index as a logical mask unless the | |
| 22 ratio of true elements is small enough, using a specialized | |
| 23 code. Previously, all logical matrices were always first converted | |
| 24 to index vectors. This results in savings in both memory and | |
| 25 computing time. | |
| 9480 | 26 |
| 10118 | 27 ** The `sub2ind' and `ind2sub' functions were reimplemented as compiled |
| 28 functions for better performance. These functions are now faster, | |
| 29 can deliver more economized results for ranges, and can reuse the | |
| 30 index cache mechanism described in previous paragraph. | |
| 31 | |
| 32 ** The built-in function equivalents to associative operators (`plus', | |
| 33 `times', `mtimes', `and', and `or') have been extended to accept | |
| 34 multiple arguments. This is especially useful for summing | |
| 35 (multiplying, etc.) lists of objects (of possibly distinct types): | |
| 9408 | 36 |
| 9449 | 37 matrix_sum = plus (matrix_list{:}); |
| 38 | |
| 10118 | 39 ** An FTP object type based on libcurl has been implemented. These |
| 40 objects allow ftp connections, downloads and uploads to be | |
| 41 managed. For example, | |
| 9880 | 42 |
| 10118 | 43 fp = ftp ("ftp.octave.org); |
| 44 cd (fp, "gnu/octave"); | |
| 45 mget (fp, "octave-3.2.3.tar.bz2"); | |
| 46 close (fp); | |
| 9880 | 47 |
| 10118 | 48 ** The default behavior of `assert (observed, expected)' has been |
| 49 relaxed to employ less strict checking that does not require the | |
| 50 internals of the values to match. This avoids previously valid | |
| 51 tests from breaking due to new internal classes introduced in future | |
| 52 Octave versions. | |
| 9449 | 53 |
| 54 For instance, all of these assertions were true in Octave 3.0.x | |
| 55 but false in 3.2.x due to new optimizations and improvements: | |
| 56 | |
| 57 assert (2*linspace (1, 5, 5), 2*(1:5)) | |
| 58 assert (zeros (0, 0), []) | |
| 59 assert (2*ones (1, 5), (2) (ones (1,5))) | |
| 9462 | 60 |
| 10118 | 61 ** The behavior of library functions `ismatrix', `issquare', and |
| 62 `issymmetric' has been changed for better consistency. | |
| 9873 | 63 |
| 10292 | 64 * The `ismatrix' function now returns true for all numeric, |
| 65 logical and character 2d or Nd matrices. Previously, `ismatrix' | |
| 66 returned false if the first or second dimension was zero. | |
| 67 Hence, `ismatrix ([])' was false, | |
| 68 while `ismatrix (zeros (1,2,0))' was true. | |
| 9873 | 69 |
| 10118 | 70 * The `issquare' function now returns a logical scalar, and is |
| 71 equivalent to the expression | |
| 72 | |
| 73 ismatrix (x) && ndims (x) == 2 && rows (x) == columns (x) | |
| 74 | |
| 75 The dimension is no longer returned. As a result, `issquare ([])' | |
| 76 now yields true. | |
| 9873 | 77 |
| 10118 | 78 * The `issymmetric' function now checks for symmetry instead of |
| 79 hermitianness. For the latter, ishermitian was created. Also, | |
| 80 logical scalar is returned rather than the dimension, so | |
| 81 `issymmetric ([])' is now true. | |
| 9873 | 82 |
| 10118 | 83 ** Function handles are now aware of overloaded functions. If a |
| 84 function is overloaded, the handle determines at the time of its | |
| 85 reference which function to call. A non-overloaded version does not | |
| 86 need to exist. | |
| 9873 | 87 |
| 10118 | 88 ** Overloading functions for built-in classes (double, int8, cell, |
| 89 etc.) is now compatible with Matlab. | |
| 9408 | 90 |
| 10323 | 91 ** Function handles can now be compared with the == and != operators, |
| 92 as well as the `isequal' function. | |
| 93 | |
| 10118 | 94 ** Performance of concatenation (using []) and the functions `cat', |
| 95 `horzcat', and `vertcat' has been improved for multidimensional | |
| 96 arrays. | |
| 10117 | 97 |
| 9547 | 98 ** The operation-assignment operators +=, -=, *= and /= now behave more |
| 10118 | 99 efficiently in certain cases. For instance, if M is a matrix and S a |
| 100 scalar, then the statement | |
| 9547 | 101 |
| 10118 | 102 M += S; |
| 9547 | 103 |
| 10118 | 104 will operate on M's data in-place if it is not shared by another |
| 105 variable, usually increasing both time and memory efficiency. | |
| 9547 | 106 |
| 9558 | 107 Only selected common combinations are affected, namely: |
| 9547 | 108 |
| 109 matrix += matrix | |
| 110 matrix -= matrix | |
| 9558 | 111 matrix .*= matrix |
| 112 matrix ./= matrix | |
| 113 | |
| 9547 | 114 matrix += scalar |
| 115 matrix -= scalar | |
| 116 matrix *= scalar | |
| 117 matrix /= scalar | |
| 9558 | 118 |
| 9552 | 119 logical matrix |= logical matrix |
| 120 logical matrix &= logical matrix | |
| 9547 | 121 |
| 10118 | 122 where matrix and scalar belong to the same class. The left-hand |
| 123 side must be a simple variable reference. | |
| 9888 | 124 |
| 10118 | 125 Moreover, when unary operators occur in expressions, Octave will |
| 126 also try to do the operation in-place if it's argument is a | |
| 127 temporary expresssion. | |
| 9589 | 128 |
| 10118 | 129 ** The effect of comparison operators (<, >, <=, and >=) applied to |
| 130 complex numbers has changed to be consistent with the strict | |
| 131 ordering defined by the `max', `min', and `sort' functions. More | |
| 132 specifically, complex numbers are compared by lexicographical | |
| 133 comparison of the pairs `[abs(z), arg(z)]'. Previously, only real | |
| 134 parts were compared; this can be trivially achieved by wrapping the | |
| 135 operands in real(). | |
| 9547 | 136 |
| 10118 | 137 ** The automatic simplification of complex computation results has |
| 138 changed. Octave will now simplify any complex number with a zero | |
| 139 imaginary part or any complex matrix with all elements having zero | |
| 140 imaginary part to a real value. Previously, this was done only for | |
| 141 positive zeros. Note that the behavior of the complex function is | |
| 142 unchanged and it still produces a complex value even if the | |
| 143 imaginary part is zero. | |
| 9826 | 144 |
| 10118 | 145 ** As a side effect of code refactoring in liboctave, the binary |
| 146 logical operations are now more easily amenable to compiler | |
| 147 optimizations and are thus significantly faster. | |
| 9595 | 148 |
| 10118 | 149 ** Octave now allows user-defined `subsasgn' methods to optimize out |
| 150 redundant copies. For more information, see the manual. | |
| 9595 | 151 |
| 10453 | 152 ** More efficient matrix division handling. Octave is now able to |
| 10118 | 153 handle the expressions |
| 9664 | 154 |
| 10118 | 155 M' \ V |
| 156 M.' \ V | |
| 157 V / M | |
| 9664 | 158 |
| 10118 | 159 (M is a matrix and V is a vector) more efficiently in certain cases. |
| 160 In particular, if M is triangular, all three expressions will be | |
| 161 handled by a single call to xTRTRS (from LAPACK), with appropriate | |
| 10453 | 162 flags. Previously, all three expressions required a physical |
| 10118 | 163 transpose of M. |
| 9664 | 164 |
| 10118 | 165 ** More efficient handling of certain mixed real-complex matrix |
| 166 operations. For instance, if RM is a real matrix and CM a complex | |
| 167 matrix, | |
| 9664 | 168 |
| 10118 | 169 RM * CM |
| 9664 | 170 |
| 171 can now be evaluated either as | |
| 172 | |
| 173 complex (RM * real (CM), RM * imag (CM)) | |
| 174 | |
| 175 or as | |
| 176 | |
| 177 complex (RM) * CM, | |
| 178 | |
| 10453 | 179 depending on the dimensions. The first form requires more |
| 180 temporaries and copying, but halves the FLOP count, which normally | |
| 181 brings better performance if RM has enough rows. Previously, the | |
| 182 second form was always used. | |
| 9664 | 183 |
| 11111 | 184 Matrix division is similarly affected. |
| 9664 | 185 |
| 10118 | 186 ** More efficient handling of triangular matrix factors returned from |
| 187 factorizations. The functions for computing QR, LU and Cholesky | |
| 188 factorizations will now automatically return the triangular matrix | |
| 189 factors with proper internal matrix_type set, so that it won't need | |
| 190 to be computed when the matrix is used for division. | |
| 9717 | 191 |
| 10118 | 192 ** The built-in `sum' function now handles the non-native summation |
| 193 (i.e., double precision sum of single or integer inputs) more | |
| 194 efficiently, avoiding a temporary conversion of the whole input | |
| 195 array to doubles. Further, `sum' can now accept an extra option | |
| 196 argument, using a compensated summation algorithm rather than a | |
| 197 straightforward sum, which significantly improves precision if lots | |
| 198 of cancellation occurs in the summation. | |
| 9717 | 199 |
| 10118 | 200 ** The built-in `bsxfun' function now uses optimized code for certain |
| 201 cases where built-in operator handles are passed in. Namely, the | |
| 202 optimizations concern the operators `plus', `minus', `times', | |
| 203 `ldivide', `rdivide', `power', `and', `or' (for logical arrays), | |
| 204 the relational operators `eq', `ne', `lt', `le', `gt', `ge', and the | |
| 205 functions `min' and `max'. Optimizations only apply when both | |
| 206 operands are of the same built-in class. Mixed real/complex and | |
| 207 single/double operations will first convert both operands to a | |
| 208 common type. | |
| 9745 | 209 |
| 10118 | 210 ** The `strfind' and `strrep' functions now have compiled |
| 211 implementations, facilitating significantly more efficient searching | |
| 212 and replacing in strings, especially with longer patterns. The code | |
| 213 of `strcat' has been vectorized and is now much more efficient when | |
| 214 many strings are concatenated. The `strcmpi' and `strncmpi' | |
| 215 functions are now built-in functions, providing better performance. | |
| 10208 | 216 |
| 10453 | 217 ** Matlab-style ignoring input and output function arguments using |
| 11111 | 218 tilde (~) is now supported. Ignored output arguments may be |
| 219 detected from a function using the built-in function `isargout'. | |
| 220 For more details, consult the manual. | |
| 10886 | 221 |
| 10453 | 222 ** The list datatype, deprecated since the introduction of cells, has |
| 223 been removed. | |
| 10276 | 224 |
| 10453 | 225 ** The accumarray function has been optimized and is now significantly |
| 226 faster in certain important cases. | |
| 10054 | 227 |
| 10292 | 228 ** The behavior of isreal and isnumeric functions was changed to be more |
| 229 Matlab-compatible. | |
| 230 | |
| 10406 | 231 ** The integer math & conversion warnings (Octave:int-convert-nan, |
| 232 Octave:int-convert-non-int-val, Octave:int-convert-overflow, | |
| 11111 | 233 Octave:int-math-overflow) have been removed. |
| 10406 | 234 |
| 10453 | 235 ** rem and mod are now built-in functions. They also handle integer |
| 236 types efficiently using integer arithmetic. | |
| 10437 | 237 |
| 10536 | 238 ** Sparse indexing and indexed assignment has been mostly rewritten. |
| 239 Since Octave uses compressed column storage for sparse matrices, | |
| 240 major attention is devoted to operations manipulating whole columns. | |
| 241 Such operations are now significantly faster, as well as some other | |
| 242 important cases. | |
| 243 | |
| 244 Further, it is now possible to pre-allocate a sparse matrix and | |
| 245 subsequently fill it by assignments, provided they meet certain | |
| 246 conditions. For more information, consult the `spalloc' function, | |
| 247 which is no longer a mere dummy. Consequently, nzmax and nnz are no | |
| 11111 | 248 longer always equal in Octave. Octave may also produce a matrix |
| 249 with nnz < nzmax as a result of other operations, so you should | |
| 250 consistently use nnz unless you really want to use nzmax (i.e. the | |
| 251 space allocated for nonzero elements). | |
| 10536 | 252 |
| 253 Sparse concatenation is also affected, and concatenating sparse | |
| 254 matrices, especially larger collections, is now significantly more | |
| 11111 | 255 efficient. This applies to both the [] operator and the |
| 10536 | 256 cat/vertcat/horzcat functions. |
| 257 | |
| 11111 | 258 ** It is now possible to optionally employ the xGESDD LAPACK drivers |
| 259 for computing the singular value decomposition using svd(), instead | |
| 260 of the default xGESVD, using the configuration pseudo-variable | |
| 261 svd_driver. The xGESDD driver can be up to 6x times faster when | |
| 262 singular vectors are requested, but is reported to be somewhat less | |
| 10639 | 263 robust on highly ill-conditioned matrices. |
| 264 | |
| 265 ** Configuration pseudo-variables, such as page_screen_output or | |
| 266 confirm_recursive_rmdir (or the above mentioned svd_driver), now | |
| 267 accept a "local" option as second argument, requesting the change | |
| 268 to be undone when current function returns: | |
| 269 | |
| 270 function [status, msg] = rm_rf (dir) | |
| 271 confirm_recursive_rmdir (false, "local"); | |
| 272 [status, msg] = rmdir (dir, "s"); | |
| 273 ... | |
| 274 endfunction | |
| 275 | |
| 276 Upon return, confirm_recursive_rmdir will be restored to the value | |
| 277 it had on entry to the function, even if there were subsequent | |
| 278 changes to the variable in function rm_rf or any of the functions | |
| 279 it calls. | |
| 280 | |
| 11111 | 281 ** pkg now accepts a -forge option for downloading and installing |
| 282 packages from Octave Forge automatically. For example, | |
| 10774 | 283 |
| 284 pkg install -forge general | |
| 285 | |
| 11111 | 286 will automatically download the latest release of the general |
| 287 package and attempt to install it. No automatic resolving of | |
| 288 dependencies is provided. Further, | |
| 10639 | 289 |
| 10774 | 290 pkg list -forge |
| 291 | |
| 292 can be used to list all available packages. | |
| 293 | |
| 11111 | 294 ** The internal data representation of structs has been completely |
| 295 rewritten to make certain optimizations feasible. The field data | |
| 296 can now be shared between structs with equal keys but different | |
| 297 dimensions or values, making operations that preserve the fields | |
| 298 faster. Economized storage is now used for scalar structs (just | |
| 299 like most other scalars), making their usage more | |
| 300 memory-efficient. Certain array-like operations on structs | |
| 301 (concatenation, uniform cellfun, num2cell) have gained a | |
| 302 significant speed-up. Additionally, the octave_scalar_map class | |
| 303 now provides a simpler interface to work with scalar structs within | |
| 304 a C++ DLD function. | |
| 10639 | 305 |
|
10776
062304bd692e
Update NEWS with description of new engineering format for numbers.
Rik <octave@nomad.inbox5.com>
parents:
10774
diff
changeset
|
306 ** Two new formats are available for displaying numbers: |
| 11111 | 307 |
| 308 format short eng | |
| 309 format long eng | |
| 310 | |
| 311 Both display numbers in engineering notation, i.e., mantissa + | |
| 312 exponent where the exponent is a multiple of 3. | |
|
10776
062304bd692e
Update NEWS with description of new engineering format for numbers.
Rik <octave@nomad.inbox5.com>
parents:
10774
diff
changeset
|
313 |
|
11112
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
314 ** The following functions are new in Octave 3.4: |
| 10829 | 315 |
|
11112
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
316 accumdim erfcx luupdate ppder rsf2csf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
317 bitpack fileread merge ppint sizemax |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
318 bitunpack fminbnd nfields ppjumps strread |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
319 blkmm fskipl nth_element pqpnonneg textread |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
320 cbrt ifelse onCleanup randi whitebg |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
321 chop ishermitian pbaspect repelems |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
322 daspect isindex powerset reset |
|
11109
41d18f6342f9
remove image_viewer function
John W. Eaton <jwe@octave.org>
parents:
10966
diff
changeset
|
323 |
|
41d18f6342f9
remove image_viewer function
John W. Eaton <jwe@octave.org>
parents:
10966
diff
changeset
|
324 ** Using the image function to view images with external programs such |
|
41d18f6342f9
remove image_viewer function
John W. Eaton <jwe@octave.org>
parents:
10966
diff
changeset
|
325 as display, xv, and xloadimage is no longer supported. The |
|
41d18f6342f9
remove image_viewer function
John W. Eaton <jwe@octave.org>
parents:
10966
diff
changeset
|
326 image_viewer function has also been removed. |
|
41d18f6342f9
remove image_viewer function
John W. Eaton <jwe@octave.org>
parents:
10966
diff
changeset
|
327 |
| 11111 | 328 ** The behavior of struct assignments to non-struct values has been |
| 329 changed. Previously, it was possible to overwrite an arbitrary | |
| 330 value: | |
| 10873 | 331 |
| 332 a = 1; | |
| 333 a.x = 2; | |
| 334 | |
| 11111 | 335 This is no longer possible unless a is an empty matrix or cell |
| 336 array. | |
| 10938 | 337 |
| 11111 | 338 ** The dlmread function has been extended to allow specifying a custom |
| 339 value for empty fields. | |
| 10829 | 340 |
| 11111 | 341 ** The dlmread and dlmwrite functions have been modified to accept |
| 342 file IDs (as returned by fopen) in addition to file names. | |
| 343 | |
| 344 ** Octave can now optimize away the interpreter overhead of an | |
| 345 anonymous function handle, if the function simply calls another | |
| 346 function or handle with some of its parameters bound to certain | |
| 347 values. Example: | |
| 10966 | 348 |
| 349 f = @(x) sum (x, 1); | |
| 350 | |
| 11111 | 351 When f is called, the call is forwarded to @sum with the constant 1 |
| 352 appended, and the anonymous function call does not occur on the | |
| 353 call stack. | |
| 10829 | 354 |
|
11112
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
355 ** Deprecated functions. |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
356 |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
357 The following functions were deprecated in Octave 3.0 and have been |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
358 removed from Octave 3.4. |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
359 |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
360 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
|
361 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
|
362 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
|
363 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
|
364 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
|
365 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
|
366 binomial_pdf intersection polyinteg |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
367 binomial_rnd is_bool setstr |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
368 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
|
369 chisquare_inv is_list struct_elements |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
370 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
|
371 chisquare_rnd is_scalar t_inv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
372 clearplot is_square t_pdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
373 clg is_stream t_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
374 com2str is_struct uniform_cdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
375 exponential_cdf is_symmetric uniform_inv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
376 exponential_inv is_vector uniform_pdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
377 exponential_pdf isstr uniform_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
378 exponential_rnd lognormal_cdf weibcdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
379 f_cdf lognormal_inv weibinv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
380 f_inv lognormal_pdf weibpdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
381 f_pdf lognormal_rnd weibrnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
382 f_rnd meshdom weibull_cdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
383 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
|
384 gamma_inv normal_inv weibull_pdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
385 gamma_pdf normal_pdf weibull_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
386 gamma_rnd normal_rnd wiener_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
387 geometric_cdf pascal_cdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
388 geometric_inv pascal_inv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
389 |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
390 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:
11111
diff
changeset
|
391 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:
11111
diff
changeset
|
392 release after 3.2): |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
393 |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
394 create_set spcholinv spmax |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
395 dmult spcumprod spmin |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
396 iscommand spcumsum spprod |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
397 israwcommand spdet spqr |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
398 lchol spdiag spsum |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
399 loadimage spfind spsumsq |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
400 mark_as_command spinv str2mat |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
401 mark_as_rawcommand spkron unmark_command |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
402 spatan2 splchol unmark_rawcommand |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
403 spchol split |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
404 spchol2inv splu |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
405 |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
406 The following functions have been deprecated in Octave 3.4 and will |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
407 be removed from Octave 3.8 (or whatever version is the second major |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
408 release after 3.4): |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
409 |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
410 cellidx fstat values |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
411 |
|
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
412 Summary of important user-visible changes for version 3.2: |
| 5913 | 413 --------------------------------------------------------- |
| 2452 | 414 |
| 8737 | 415 ** Compatibility with Matlab graphics has been improved. |
| 6329 | 416 |
|
8070
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
417 The hggroup object and associated listener callback functions have |
| 8737 | 418 been added allowing the inclusion of group objects. Data sources |
|
8070
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
419 have been added to these group objects such that |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
420 |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
421 x = 0:0.1:10; |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
422 y = sin (x); |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
423 plot (x, y, "ydatasource", "y"); |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
424 for i = 1 : 100 |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
425 pause(0.1) |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
426 y = sin (x + 0.1 * i); |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
427 refreshdata(); |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
428 endfor |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
429 |
| 8737 | 430 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
|
431 stem-series, bar-series, etc., objects for better Matlab |
| 8737 | 432 compatibility. |
| 433 | |
| 434 ** New graphics functions: | |
| 435 | |
|
9110
22ae6b3411a7
Add isocolor, isonormals and isosurface functions (For Martin Helm). Add 3D filled triangular patches and the trisurf function
David Bateman <dbateman@free.fr>
parents:
9042
diff
changeset
|
436 addlistener ezcontour gcbo refresh |
|
22ae6b3411a7
Add isocolor, isonormals and isosurface functions (For Martin Helm). Add 3D filled triangular patches and the trisurf function
David Bateman <dbateman@free.fr>
parents:
9042
diff
changeset
|
437 addproperty ezcontourf ginput refreshdata |
|
22ae6b3411a7
Add isocolor, isonormals and isosurface functions (For Martin Helm). Add 3D filled triangular patches and the trisurf function
David Bateman <dbateman@free.fr>
parents:
9042
diff
changeset
|
438 allchild ezmesh gtext specular |
|
22ae6b3411a7
Add isocolor, isonormals and isosurface functions (For Martin Helm). Add 3D filled triangular patches and the trisurf function
David Bateman <dbateman@free.fr>
parents:
9042
diff
changeset
|
439 available_backends ezmeshc intwarning surfl |
|
22ae6b3411a7
Add isocolor, isonormals and isosurface functions (For Martin Helm). Add 3D filled triangular patches and the trisurf function
David Bateman <dbateman@free.fr>
parents:
9042
diff
changeset
|
440 backend ezplot ishghandle trisurf |
|
22ae6b3411a7
Add isocolor, isonormals and isosurface functions (For Martin Helm). Add 3D filled triangular patches and the trisurf function
David Bateman <dbateman@free.fr>
parents:
9042
diff
changeset
|
441 cla ezplot3 isocolors waitforbuttonpress |
|
22ae6b3411a7
Add isocolor, isonormals and isosurface functions (For Martin Helm). Add 3D filled triangular patches and the trisurf function
David Bateman <dbateman@free.fr>
parents:
9042
diff
changeset
|
442 clabel ezpolar isonormals |
|
22ae6b3411a7
Add isocolor, isonormals and isosurface functions (For Martin Helm). Add 3D filled triangular patches and the trisurf function
David Bateman <dbateman@free.fr>
parents:
9042
diff
changeset
|
443 comet ezsurf isosurface |
|
22ae6b3411a7
Add isocolor, isonormals and isosurface functions (For Martin Helm). Add 3D filled triangular patches and the trisurf function
David Bateman <dbateman@free.fr>
parents:
9042
diff
changeset
|
444 dellistener findall linkprop |
|
22ae6b3411a7
Add isocolor, isonormals and isosurface functions (For Martin Helm). Add 3D filled triangular patches and the trisurf function
David Bateman <dbateman@free.fr>
parents:
9042
diff
changeset
|
445 diffuse gcbf plotmatrix |
|
8070
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
446 |
| 8737 | 447 ** New experimental OpenGL/FLTK based plotting system. |
| 448 | |
| 449 An experimental plotting system based on OpenGL and the FLTK | |
| 450 toolkit is now part of Octave. This backend is disabled by | |
| 451 default. You can switch to using it with the command | |
|
8070
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
452 |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
453 backend ("fltk") |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
454 |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
455 for all future figures or for a particular figure with the command |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
456 |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
457 backend (h, "fltk") |
|
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
458 |
| 11139 | 459 where "h" is a valid figure handle. |
|
8070
3b53b25e2550
Add data sources and line series
David Bateman <dbateman@free.fr>
parents:
8014
diff
changeset
|
460 |
| 8737 | 461 ** Functions providing direct access to gnuplot have been removed. |
| 462 | |
|
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
463 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
|
464 __gnuplot_show__, __gnuplot_replot__, __gnuplot_splot__, |
| 8737 | 465 __gnuplot_save_data__ and __gnuplot_send_inline_data__ have been |
| 466 removed from Octave. These function were incompatible with the | |
| 467 high level graphics handle code. | |
| 6329 | 468 |
| 8885 | 469 ** The Control, Finance and Quaternion functions have been removed. |
| 470 | |
| 471 These functions are now available as separate packages from | |
| 472 | |
| 473 http://octave.sourceforge.net/packages.html | |
| 474 | |
| 475 and can be reinstalled using the Octave package manager (see | |
| 476 the pkg function). | |
| 477 | |
| 478 ** Specific sparse matrix functions removed. | |
| 479 | |
| 480 The following functions, which handled only sparse matrices have | |
| 481 been removed. Instead of calling these functions directly, you | |
| 482 should use the corresponding function without the "sp" prefix. | |
| 8737 | 483 |
| 8885 | 484 spatan2 spcumsum spkron spprod |
| 485 spchol spdet splchol spqr | |
| 486 spchol2inv spdiag splu spsum | |
| 487 spcholinv spfind spmax spsumsqk | |
| 488 spcumprod spinv spmin | |
| 489 | |
| 490 ** Improvements to the debugger. | |
| 491 | |
| 492 The interactive debugging features have been improved. Stopping | |
| 493 on statements with dbstop should work correctly now. Stepping | |
| 494 into and over functions, and stepping one statement at a time | |
| 495 (with dbstep) now works. Moving up and down the call stack with | |
| 496 dbup and dbdown now works. The dbstack function is now available | |
| 497 to print the current function call stack. The new dbquit function | |
| 498 is available to exit the debugging mode. | |
| 499 | |
| 500 ** Improved traceback error messages. | |
| 501 | |
| 502 Traceback error messages are much more concise and easier to | |
| 503 understand. They now display information about the function call | |
| 504 stack instead of the stack of all statements that were active at | |
| 505 the point of the error. | |
|
8014
44d206ae68c9
improve fsolve compatibility
John W. Eaton <jwe@octave.org>
parents:
7990
diff
changeset
|
506 |
| 8737 | 507 ** Object Oriented Programming. |
|
8405
d79dfbff2f9d
document new norm features in NEWS
Jaroslav Hajek <highegg@gmail.com>
parents:
8396
diff
changeset
|
508 |
| 8737 | 509 Octave now includes OOP features and the user can create their own |
| 510 class objects and overloaded functions and operators. For | |
| 511 example, all methods of a class called "myclass" will be found in | |
| 512 a directory "@myclass" on the users path. The class specific | |
| 513 versions of functions and operators take precedence over the | |
| 514 generic versions of these functions. | |
| 515 | |
| 516 New functions related to OOP include | |
| 7189 | 517 |
| 8737 | 518 class inferiorto isobject loadobj methods superiorto |
| 519 | |
| 520 See the Octave manual for more details. | |
| 7038 | 521 |
| 8747 | 522 ** Parsing of Command-style Functions. |
| 523 | |
| 524 Octave now parses command-style functions without needing to first | |
| 525 declare them with "mark_as_command". The rules for recognizing a | |
| 526 command-style function calls are | |
| 527 | |
| 528 * A command must appear as the first word in a statement, | |
| 529 followed by a space. | |
| 530 | |
| 531 * The first character after the space must not be '=' or '(' | |
| 532 | |
| 533 * The next token after the space must not look like a binary | |
| 534 operator. | |
| 535 | |
| 536 These rules should be mostly compatible with the way Matlab parses | |
| 537 command-style function calls and allow users to define commands in | |
| 538 .m files without having to mark them as commands. | |
| 539 | |
| 540 Note that previous versions of Octave allowed expressions like | |
| 541 | |
| 542 x = load -text foo.dat | |
| 543 | |
| 544 but an expression like this will now generate a parse error. In | |
| 545 order to assign the value returned by a function to a variable, | |
| 546 you must use the normal function call syntax: | |
| 547 | |
| 548 x = load ("-text", "foo.dat"); | |
| 549 | |
| 8737 | 550 ** Block comments. |
| 551 | |
| 8747 | 552 Commented code can be between matching "#{" and "#}" or "%{" and |
| 553 "%}" markers, even if the commented code spans several line. This | |
| 554 allows blocks code to be commented, without needing to comment | |
| 555 each line. For example, | |
| 5814 | 556 |
| 8747 | 557 function [s, t] = func (x, y) |
| 558 s = 2 * x; | |
| 559 #{ | |
| 560 s *= y; | |
| 561 t = y + x; | |
| 562 #} | |
|
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
563 endfunction |
| 5814 | 564 |
| 8747 | 565 the lines "s *= y;" and "t = y + x" will not be executed. |
| 8737 | 566 |
| 567 ** Special treatment in the parser of expressions like "a' * b". | |
| 2452 | 568 |
| 8737 | 569 In these cases the transpose is no longer explicitly formed and |
| 570 BLAS libraries are called with the transpose flagged, | |
| 571 significantly improving performance for these kinds of | |
| 572 operations. | |
|
8417
654bcfb937bf
Add the eigs and svds functions
David Bateman <dbateman@free.fr>
parents:
8405
diff
changeset
|
573 |
| 8737 | 574 ** Single Precision data type. |
| 2452 | 575 |
| 8737 | 576 Octave now includes a single precision data type. Single |
| 577 precision variables can be created with the "single" command, or | |
|
9034
52515efc50c0
Documentation cleanup on NEWS file
Rik <rdrider0-list@yahoo.com>
parents:
9031
diff
changeset
|
578 from functions like ones, eye, etc. For example, |
| 5995 | 579 |
| 8737 | 580 single (1) |
| 581 ones (2, 2, "single") | |
| 582 zeros (2, 2, "single") | |
| 583 eye (2, 2, "single") | |
| 584 Inf (2, 2, "single") | |
| 585 NaN (2, 2, "single") | |
| 586 NA (2, 2, "single") | |
| 7279 | 587 |
| 8737 | 588 all create single precision variables. For compatibility with |
| 589 Matlab, mixed double/single precision operators and functions | |
| 590 return single precision types. | |
| 591 | |
| 592 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
|
593 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
|
594 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
|
595 visa-versa are warned that compatibility might not be assured. |
| 7279 | 596 |
| 8737 | 597 ** Improved array indexing. |
| 598 | |
| 599 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
|
600 completely rewritten and indexing is now significantly faster. |
| 8737 | 601 |
| 8755 | 602 ** Improved memory management. |
| 603 | |
| 604 Octave will now attempt to share data in some cases where previously | |
| 605 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
|
606 conversions between cells, structs and cs-lists. This usually reduces |
| 8755 | 607 both time and memory consumption. |
| 9128 | 608 Also, Octave will now attempt to detect and optimize usage of a vector |
| 609 as a stack, when elements are being repeatedly inserted at/removed from | |
| 610 the end of the vector. | |
| 8755 | 611 |
| 8738 | 612 ** Improved performance for reduction operations. |
| 613 | |
| 8755 | 614 The performance of the sum, prod, sumsq, cumsum, cumprod, any, all, |
| 615 max and min functions has been significantly improved. | |
| 8738 | 616 |
| 9006 | 617 ** Sorting and searching. |
| 618 | |
| 619 The performance of sort has been improved, especially when sorting | |
| 10453 | 620 indices are requested. An efficient built-in issorted |
| 621 implementation was added. The sortrows function now uses a more | |
| 622 efficient algorithm, especially in the homegeneous case. The lookup | |
| 623 function is now a built-in function performing a binary search, | |
| 624 optimized for long runs of close elements. Lookup also works with | |
| 625 cell arrays of strings. | |
| 9006 | 626 |
| 627 ** Range arithmetics | |
| 628 | |
| 10453 | 629 For some operations on ranges, Octave will attempt to keep the |
| 630 result as a range. These include negation, adding a scalar, | |
| 631 subtracting a scalar, and multiplying by a scalar. Ranges with zero | |
| 632 increment are allowed and can be constructed using the built-in | |
| 633 function `ones'. | |
| 9006 | 634 |
| 635 ** Various performance improvements. | |
| 636 | |
| 10453 | 637 Performance of a number of other built-in operations and functions |
| 638 was improved, including: | |
| 9006 | 639 |
| 640 * logical operations | |
| 641 * comparison operators | |
| 642 * element-wise power | |
| 643 * accumarray | |
| 644 * cellfun | |
| 645 * isnan | |
| 646 * isinf | |
| 647 * isfinite | |
| 648 * nchoosek | |
| 649 * repmat | |
| 650 * strcmp | |
| 651 | |
| 8737 | 652 ** 64-bit integer arithmetic. |
| 653 | |
| 654 Arithmetic with 64-bit integers (int64 and uint64 types) is fully | |
| 655 supported, with saturation semantics like the other integer types. | |
| 656 Performance of most integer arithmetic operations has been | |
| 657 improved by using integer arithmetic directly. Previously, Octave | |
| 658 performed integer math with saturation semantics by converting the | |
| 659 operands to double precision, performing the operation, and then | |
| 660 converting the result back to an integer value, truncating if | |
| 661 necessary. | |
| 662 | |
| 8885 | 663 ** Diagonal and permutation matrices. |
| 664 | |
| 665 The interpreter can now treat diagonal and permutation matrices as | |
| 666 special objects that store only the non-zero elements, rather than | |
| 667 general full matrices. Therefore, it is now possible to construct | |
| 668 and use these matrices in linear algebra without suffering a | |
| 669 performance penalty due to storing large numbers of zero elements. | |
| 670 | |
| 671 ** Improvements to fsolve. | |
| 672 | |
| 673 The fsolve function now accepts an option structure argument (see | |
| 674 also the optimset function). The INFO values returned from fsolve | |
| 675 have changed to be compatible with Matlab's fsolve function. | |
| 676 Additionally, fsolve is now able to solve overdetermined systems, | |
| 677 complex-differentiable complex systems, systems with a sparse | |
| 678 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
changeset
|
679 inputs. It can also be called recursively. |
| 8885 | 680 |
| 8737 | 681 ** Improvements to the norm function. |
| 682 | |
| 683 The norm function is now able to compute row or column norms of a | |
| 684 matrix in a single call, as well as general matrix p-norms. | |
| 685 | |
| 686 ** New functions for computing some eigenvalues or singular values. | |
| 687 | |
| 688 The eigs and svds functions have been included in Octave. These | |
| 689 functions require the ARPACK library (now distributed under a | |
| 690 GPL-compatible license). | |
| 691 | |
| 692 ** 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
|
693 |
| 8737 | 694 choldelete cholshift qrdelete qrshift |
| 695 cholinsert cholupdate qrinsert qrupdate | |
| 696 | |
| 697 ** New quadrature functions. | |
| 698 | |
| 699 dblquad quadgk quadv triplequad | |
| 700 | |
| 8885 | 701 ** New functions for reading and writing images. |
| 702 | |
| 703 The imwrite and imread functions have been included in Octave. | |
| 704 These functions require the GraphicsMagick library. The new | |
| 705 function imfinfo provides information about an image file (size, | |
| 706 type, colors, etc.) | |
| 707 | |
|
9215
1500d0197484
allow multiple input event hook functions to be installed simultaneously
John W. Eaton <jwe@octave.org>
parents:
9128
diff
changeset
|
708 ** 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>
parents:
9128
diff
changeset
|
709 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>
parents:
9128
diff
changeset
|
710 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>
parents:
9128
diff
changeset
|
711 |
| 8737 | 712 ** Other miscellaneous new functions. |
|
8370
34960ba08a81
document more new features in the NEWS file
Jaroslav Hajek <highegg@gmail.com>
parents:
8292
diff
changeset
|
713 |
|
8932
2d0f8692a82e
Add the 'histc' function
Soren Hauberg <hauberg@gmail.com>
parents:
8888
diff
changeset
|
714 addtodate hypot reallog |
|
2d0f8692a82e
Add the 'histc' function
Soren Hauberg <hauberg@gmail.com>
parents:
8888
diff
changeset
|
715 bicgstab idivide realpow |
| 9006 | 716 cellslices info realsqrt |
| 717 cgs interp1q rectint | |
| 718 command_line_path isdebugmode regexptranslate | |
| 719 contrast isfloat restoredefaultpath | |
| 720 convn isstrprop roundb | |
| 721 cummin log1p rundemos | |
| 722 cummax lsqnonneg runlength | |
| 723 datetick matlabroot saveobj | |
| 724 display namelengthmax spaugment | |
| 725 expm1 nargoutchk strchr | |
| 726 filemarker pathdef strvcat | |
| 727 fstat perl subspace | |
| 728 full prctile symvar | |
| 729 fzero quantile treelayout | |
| 730 genvarname re_read_readline_init_file validatestring | |
| 731 histc | |
|
8370
34960ba08a81
document more new features in the NEWS file
Jaroslav Hajek <highegg@gmail.com>
parents:
8292
diff
changeset
|
732 |
| 8885 | 733 ** Changes to strcat. |
| 734 | |
| 735 The strcat function is now compatible with Matlab's strcat | |
| 736 function, which removes trailing whitespace when concatenating | |
| 737 character strings. For example | |
| 738 | |
| 739 strcat ('foo ', 'bar') | |
| 740 ==> 'foobar' | |
| 741 | |
| 742 The new function cstrcat provides the previous behavior of | |
| 743 Octave's strcat. | |
| 744 | |
| 745 ** Improvements to the help functions. | |
| 746 | |
|
9034
52515efc50c0
Documentation cleanup on NEWS file
Rik <rdrider0-list@yahoo.com>
parents:
9031
diff
changeset
|
747 The help system has been mostly re-implemented in .m files to make |
| 8885 | 748 it easier to modify. Performance of the lookfor function has been |
| 749 greatly improved by caching the help text from all functions that | |
| 750 are distributed with Octave. The pkg function has been modified | |
| 751 to generate cache files for external packages when they are | |
| 752 installed. | |
| 753 | |
|
8888
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
754 ** Deprecated functions. |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
755 |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
756 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
|
757 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
|
758 release after 3.0): |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
759 |
|
11112
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
760 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
|
761 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
|
762 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
|
763 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
|
764 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
|
765 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
|
766 binomial_pdf intersection polyinteg |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
767 binomial_rnd is_bool setstr |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
768 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
|
769 chisquare_inv is_list struct_elements |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
770 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
|
771 chisquare_rnd is_scalar t_inv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
772 clearplot is_square t_pdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
773 clg is_stream t_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
774 com2str is_struct uniform_cdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
775 exponential_cdf is_symmetric uniform_inv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
776 exponential_inv is_vector uniform_pdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
777 exponential_pdf isstr uniform_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
778 exponential_rnd lognormal_cdf weibcdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
779 f_cdf lognormal_inv weibinv |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
780 f_inv lognormal_pdf weibpdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
781 f_pdf lognormal_rnd weibrnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
782 f_rnd meshdom weibull_cdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
783 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
|
784 gamma_inv normal_inv weibull_pdf |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
785 gamma_pdf normal_pdf weibull_rnd |
|
8ea4cf59c41b
list deprecated and removed functions in NEWS file
John W. Eaton <jwe@octave.org>
parents:
11111
diff
changeset
|
786 gamma_rnd normal_rnd wiener_rnd |
|
8888
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
787 geometric_cdf pascal_cdf |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
788 geometric_inv pascal_inv |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
789 |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
790 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
|
791 be removed from Octave 3.6 (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
|
792 release after 3.2): |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
793 |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
794 create_set spcholinv spmax |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
795 dmult spcumprod spmin |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
796 iscommand spcumsum spprod |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
797 israwcommand spdet spqr |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
798 lchol spdiag spsum |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
799 loadimage spfind spsumsq |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
800 mark_as_command spinv str2mat |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
801 mark_as_rawcommand spkron unmark_command |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
802 spatan2 splchol unmark_rawcommand |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
803 spchol split |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
804 spchol2inv splu |
|
0c7b0049c023
mark create_set as deprecated in 3.2, not 3.0
John W. Eaton <jwe@octave.org>
parents:
8885
diff
changeset
|
805 |
|
7990
86dae6e5b83c
Initial update of NEWS for 3.2 release
David Bateman <dbateman@free.fr>
parents:
7279
diff
changeset
|
806 See NEWS.3 for old news. |