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annotate scripts/testfun/demo.m @ 14363:f3d52523cde1
Use Octave coding conventions in all m-file %!test blocks
* wavread.m, acosd.m, acot.m, acotd.m, acoth.m, acsc.m, acscd.m, acsch.m,
asec.m, asecd.m, asech.m, asind.m, atand.m, cosd.m, cot.m, cotd.m, coth.m,
csc.m, cscd.m, csch.m, sec.m, secd.m, sech.m, sind.m, tand.m, accumarray.m,
accumdim.m, bitcmp.m, bitget.m, bitset.m, blkdiag.m, cart2pol.m, cart2sph.m,
celldisp.m, chop.m, circshift.m, colon.m, common_size.m, cplxpair.m,
cumtrapz.m, curl.m, dblquad.m, deal.m, divergence.m, flipdim.m, fliplr.m,
flipud.m, genvarname.m, gradient.m, idivide.m, int2str.m, interp1.m,
interp1q.m, interp2.m, interp3.m, interpft.m, interpn.m, isa.m, isdir.m,
isequal.m, isequalwithequalnans.m, issquare.m, logspace.m, nargchk.m,
narginchk.m, nargoutchk.m, nextpow2.m, nthargout.m, num2str.m, pol2cart.m,
polyarea.m, postpad.m, prepad.m, profile.m, profshow.m, quadgk.m, quadv.m,
randi.m, rat.m, repmat.m, rot90.m, rotdim.m, shift.m, shiftdim.m, sph2cart.m,
structfun.m, trapz.m, triplequad.m, convhull.m, dsearch.m, dsearchn.m,
griddata3.m, griddatan.m, rectint.m, tsearchn.m, __makeinfo__.m, doc.m,
get_first_help_sentence.m, help.m, type.m, unimplemented.m, which.m, imread.m,
imwrite.m, dlmwrite.m, fileread.m, is_valid_file_id.m, strread.m, textread.m,
textscan.m, commutation_matrix.m, cond.m, condest.m, cross.m,
duplication_matrix.m, expm.m, housh.m, isdefinite.m, ishermitian.m,
issymmetric.m, logm.m, normest.m, null.m, onenormest.m, orth.m, planerot.m,
qzhess.m, rank.m, rref.m, trace.m, vech.m, ans.m, bincoeff.m, bug_report.m,
bzip2.m, comma.m, compare_versions.m, computer.m, edit.m, fileparts.m,
fullfile.m, getfield.m, gzip.m, info.m, inputname.m, isappdata.m, isdeployed.m,
ismac.m, ispc.m, isunix.m, list_primes.m, ls.m, mexext.m, namelengthmax.m,
news.m, orderfields.m, paren.m, recycle.m, rmappdata.m, semicolon.m,
setappdata.m, setfield.m, substruct.m, symvar.m, ver.m, version.m,
warning_ids.m, xor.m, fminbnd.m, fsolve.m, fzero.m, lsqnonneg.m, optimset.m,
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ginput.m, graphics_toolkit.m, gtext.m, hggroup.m, hist.m, hold.m, isfigure.m,
ishghandle.m, ishold.m, isocolors.m, isonormals.m, isosurface.m, isprop.m,
legend.m, line.m, loglog.m, loglogerr.m, meshgrid.m, ndgrid.m, newplot.m,
orient.m, patch.m, plot3.m, plotyy.m, __print_parse_opts__.m, quiver3.m,
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vander.m, __finish__.m, center.m, cloglog.m, corr.m, cov.m, gls.m, histc.m,
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range.m, ranks.m, run_count.m, runlength.m, skewness.m, spearman.m,
statistics.m, std.m, table.m, var.m, zscore.m, betacdf.m, betainv.m, betapdf.m,
betarnd.m, binocdf.m, binoinv.m, binopdf.m, binornd.m, cauchy_cdf.m,
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chi2rnd.m, discrete_cdf.m, discrete_inv.m, discrete_pdf.m, discrete_rnd.m,
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expinv.m, exppdf.m, exprnd.m, fcdf.m, finv.m, fpdf.m, frnd.m, gamcdf.m,
gaminv.m, gampdf.m, gamrnd.m, geocdf.m, geoinv.m, geopdf.m, geornd.m,
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laplace_cdf.m, laplace_inv.m, laplace_pdf.m, laplace_rnd.m, logistic_cdf.m,
logistic_inv.m, logistic_pdf.m, logistic_rnd.m, logncdf.m, logninv.m,
lognpdf.m, lognrnd.m, nbincdf.m, nbininv.m, nbinpdf.m, nbinrnd.m, normcdf.m,
norminv.m, normpdf.m, normrnd.m, poisscdf.m, poissinv.m, poisspdf.m,
poissrnd.m, stdnormal_cdf.m, stdnormal_inv.m, stdnormal_pdf.m, stdnormal_rnd.m,
tcdf.m, tinv.m, tpdf.m, trnd.m, unidcdf.m, unidinv.m, unidpdf.m, unidrnd.m,
unifcdf.m, unifinv.m, unifpdf.m, unifrnd.m, wblcdf.m, wblinv.m, wblpdf.m,
wblrnd.m, kolmogorov_smirnov_test.m, kruskal_wallis_test.m, base2dec.m,
bin2dec.m, blanks.m, cstrcat.m, deblank.m, dec2base.m, dec2bin.m, dec2hex.m,
findstr.m, hex2dec.m, index.m, isletter.m, mat2str.m, rindex.m, str2num.m,
strcat.m, strjust.m, strmatch.m, strsplit.m, strtok.m, strtrim.m, strtrunc.m,
substr.m, validatestring.m, demo.m, example.m, fail.m, speed.m, addtodate.m,
asctime.m, clock.m, ctime.m, date.m, datenum.m, datetick.m, datevec.m,
eomday.m, etime.m, is_leap_year.m, now.m:
Use Octave coding conventions in all m-file %!test blocks
author | Rik <octave@nomad.inbox5.com> |
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date | Mon, 13 Feb 2012 07:29:44 -0800 |
parents | 7277fe922e99 |
children | 460a3c6d8bf1 |
rev | line source |
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1 ## Copyright (C) 2000-2012 Paul Kienzle |
5589 | 2 ## |
7016 | 3 ## This file is part of Octave. |
5589 | 4 ## |
7016 | 5 ## Octave is free software; you can redistribute it and/or modify it |
6 ## under the terms of the GNU General Public License as published by | |
7 ## the Free Software Foundation; either version 3 of the License, or (at | |
8 ## your option) any later version. | |
9 ## | |
10 ## Octave is distributed in the hope that it will be useful, but | |
11 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 ## General Public License for more details. | |
5589 | 14 ## |
15 ## You should have received a copy of the GNU General Public License | |
7016 | 16 ## along with Octave; see the file COPYING. If not, see |
17 ## <http://www.gnu.org/licenses/>. | |
5589 | 18 |
19 ## -*- texinfo -*- | |
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20 ## @deftypefn {Command} {} demo @var{name} |
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21 ## @deftypefnx {Command} {} demo @var{name} @var{n} |
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22 ## @deftypefnx {Function File} {} demo ("@var{name}") |
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23 ## @deftypefnx {Function File} {} demo ("@var{name}", @var{n}) |
5589 | 24 ## |
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25 ## Run example code block @var{n} associated with the function @var{name}. |
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26 ## If @var{n} is not specified, all examples are run. |
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27 ## |
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28 ## Examples are stored in the script file, or in a file with the same |
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29 ## name but no extension located on Octave's load path. To keep examples |
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30 ## separate from regular script code, all lines are prefixed by @code{%!}. Each |
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31 ## example must also be introduced by the keyword 'demo' flush left to the |
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32 ## prefix with no intervening spaces. The remainder of the example can |
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33 ## contain arbitrary Octave code. For example: |
5589 | 34 ## |
35 ## @example | |
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36 ## @group |
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37 ## %!demo |
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38 ## %! t = 0:0.01:2*pi; |
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39 ## %! x = sin (t); |
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40 ## %! plot (t, x); |
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41 ## %! %------------------------------------------------- |
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42 ## %! % the figure window shows one cycle of a sine wave |
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43 ## @end group |
5589 | 44 ## @end example |
45 ## | |
46 ## Note that the code is displayed before it is executed, so a simple | |
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47 ## comment at the end suffices for labeling what is being shown. It is |
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48 ## generally not necessary to use @code{disp} or @code{printf} within the demo. |
5589 | 49 ## |
50 ## Demos are run in a function environment with no access to external | |
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51 ## variables. This means that every demo must have separate initialization |
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52 ## code. Alternatively, all demos can be combined into a single large demo |
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53 ## with the code |
5589 | 54 ## |
55 ## @example | |
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56 ## %! input("Press <enter> to continue: ","s"); |
5589 | 57 ## @end example |
58 ## | |
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59 ## @noindent |
5589 | 60 ## between the sections, but this is discouraged. Other techniques |
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61 ## to avoid multiple initialization blocks include using multiple plots |
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62 ## with a new @code{figure} command between each plot, or using @code{subplot} |
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63 ## to put multiple plots in the same window. |
5589 | 64 ## |
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65 ## Also, because demo evaluates within a function context, you cannot |
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66 ## define new functions inside a demo. If you must have function blocks, |
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67 ## rather than just anonymous functions or inline functions, you will have to |
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68 ## use @code{eval(example("function",n))} to see them. Because eval only |
5589 | 69 ## evaluates one line, or one statement if the statement crosses |
70 ## multiple lines, you must wrap your demo in "if 1 <demo stuff> endif" | |
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71 ## with the 'if' on the same line as 'demo'. For example: |
5589 | 72 ## |
73 ## @example | |
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74 ## @group |
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75 ## %!demo if 1 |
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76 ## %! function y=f(x) |
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77 ## %! y=x; |
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78 ## %! endfunction |
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79 ## %! f(3) |
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80 ## %! endif |
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81 ## @end group |
5589 | 82 ## @end example |
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83 ## |
5642 | 84 ## @seealso{test, example} |
5589 | 85 ## @end deftypefn |
86 | |
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87 ## FIXME: modify subplot so that gnuplot_has_multiplot == 0 causes it to |
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88 ## use the current figure window but pause if not plotting in the |
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89 ## first subplot. |
5589 | 90 |
6494 | 91 function demo (name, n) |
5589 | 92 |
93 if (nargin < 1 || nargin > 2) | |
6046 | 94 print_usage (); |
5589 | 95 endif |
96 | |
97 if (nargin < 2) | |
98 n = 0; | |
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99 elseif (ischar (n)) |
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100 n = str2double (n); |
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101 endif |
5589 | 102 |
6494 | 103 [code, idx] = test (name, "grabdemo"); |
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104 if (isempty (idx)) |
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105 warning ("no demo available for %s", name); |
5589 | 106 return; |
6494 | 107 elseif (n >= length (idx)) |
108 warning ("only %d demos available for %s", length (idx) - 1, name); | |
5589 | 109 return; |
110 endif | |
111 | |
112 if (n > 0) | |
113 doidx = n; | |
114 else | |
6494 | 115 doidx = 1:length(idx)-1; |
5589 | 116 endif |
6494 | 117 for i = 1:length (doidx) |
5589 | 118 ## Pause between demos |
119 if (i > 1) | |
6494 | 120 input ("Press <enter> to continue: ", "s"); |
5589 | 121 endif |
122 | |
123 ## Process each demo without failing | |
124 try | |
6494 | 125 block = code(idx(doidx(i)):idx(doidx(i)+1)-1); |
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126 ## FIXME: need to check for embedded test functions, which cause |
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127 ## segfaults, until issues with subfunctions in functions are resolved. |
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128 embed_func = regexp (block, '^\s*function ', 'once', 'lineanchors'); |
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129 if (isempty (embed_func)) |
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130 ## Use an environment without variables |
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131 eval (cstrcat ("function __demo__()\n", block, "\nendfunction")); |
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132 ## Display the code that will be executed before executing it |
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133 printf ("%s example %d:%s\n\n", name, doidx(i), block); |
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134 __demo__; |
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135 else |
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136 error (["Functions embedded in %!demo blocks are not allowed.\n", ... |
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137 "Use the %!function/%!endfunction syntax instead to define shared functions for testing.\n"]); |
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138 endif |
5589 | 139 catch |
140 ## Let the programmer know which demo failed. | |
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141 printf ("%s example %d: failed\n%s\n", name, doidx(i), lasterr ()); |
5589 | 142 end_try_catch |
143 clear __demo__; | |
144 endfor | |
145 | |
146 endfunction | |
147 | |
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148 |
5589 | 149 %!demo |
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150 %! t = 0:0.01:2*pi; |
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151 %! x = sin (t); |
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152 %! plot (t, x); |
5589 | 153 %! %------------------------------------------------- |
154 %! % the figure window shows one cycle of a sine wave | |
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155 |
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156 %!error demo () |
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157 %!error demo (1, 2, 3) |
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158 |