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annotate scripts/general/num2str.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,
pqpnonneg.m, sqp.m, matlabroot.m, __gnuplot_drawnow__.m,
__plt_get_axis_arg__.m, ancestor.m, cla.m, clf.m, close.m, colorbar.m,
colstyle.m, comet3.m, contourc.m, figure.m, gca.m, gcbf.m, gcbo.m, gcf.m,
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,
refreshdata.m, ribbon.m, semilogx.m, semilogxerr.m, semilogy.m, stem.m,
stem3.m, subplot.m, title.m, uigetfile.m, view.m, whitebg.m, compan.m, conv.m,
deconv.m, mkpp.m, mpoles.m, pchip.m, poly.m, polyaffine.m, polyder.m,
polyfit.m, polygcd.m, polyint.m, polyout.m, polyval.m, polyvalm.m, ppder.m,
ppint.m, ppjumps.m, ppval.m, residue.m, roots.m, spline.m, intersect.m,
ismember.m, powerset.m, setdiff.m, setxor.m, union.m, unique.m,
autoreg_matrix.m, bartlett.m, blackman.m, detrend.m, fftconv.m, fftfilt.m,
fftshift.m, freqz.m, hamming.m, hanning.m, ifftshift.m, sinc.m, sinetone.m,
sinewave.m, unwrap.m, bicg.m, bicgstab.m, gmres.m, gplot.m, nonzeros.m, pcg.m,
pcr.m, spaugment.m, spconvert.m, spdiags.m, speye.m, spfun.m, spones.m,
sprand.m, sprandsym.m, spstats.m, spy.m, svds.m, treelayout.m, bessel.m,
beta.m, betaln.m, factor.m, factorial.m, isprime.m, lcm.m, legendre.m,
nchoosek.m, nthroot.m, perms.m, pow2.m, primes.m, reallog.m, realpow.m,
realsqrt.m, hadamard.m, hankel.m, hilb.m, invhilb.m, magic.m, rosser.m,
vander.m, __finish__.m, center.m, cloglog.m, corr.m, cov.m, gls.m, histc.m,
iqr.m, kendall.m, kurtosis.m, logit.m, mahalanobis.m, mean.m, meansq.m,
median.m, mode.m, moment.m, ols.m, ppplot.m, prctile.m, probit.m, quantile.m,
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,
cauchy_inv.m, cauchy_pdf.m, cauchy_rnd.m, chi2cdf.m, chi2inv.m, chi2pdf.m,
chi2rnd.m, discrete_cdf.m, discrete_inv.m, discrete_pdf.m, discrete_rnd.m,
empirical_cdf.m, empirical_inv.m, empirical_pdf.m, empirical_rnd.m, expcdf.m,
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,
hygecdf.m, hygeinv.m, hygepdf.m, hygernd.m, kolmogorov_smirnov_cdf.m,
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> |
---|---|
date | Mon, 13 Feb 2012 07:29:44 -0800 |
parents | 72c96de7a403 |
children | f8e041f11b18 |
rev | line source |
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14138
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maint: update copyright notices for 2012
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1 ## Copyright (C) 1993-2012 John W. Eaton |
2313 | 2 ## |
3 ## This file is part of Octave. | |
4 ## | |
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 | |
7016 | 7 ## the Free Software Foundation; either version 3 of the License, or (at |
8 ## your option) any later version. | |
2313 | 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. | |
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/>. | |
245 | 18 |
3361 | 19 ## -*- texinfo -*- |
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20 ## @deftypefn {Function File} {} num2str (@var{x}) |
4229 | 21 ## @deftypefnx {Function File} {} num2str (@var{x}, @var{precision}) |
22 ## @deftypefnx {Function File} {} num2str (@var{x}, @var{format}) | |
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23 ## Convert a number (or array) to a string (or a character array). The |
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24 ## optional second argument may either give the number of significant |
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25 ## digits (@var{precision}) to be used in the output or a format |
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26 ## template string (@var{format}) as in @code{sprintf} (@pxref{Formatted |
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27 ## Output}). @code{num2str} can also handle complex numbers. For |
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28 ## example: |
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29 ## |
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30 ## @example |
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31 ## @group |
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32 ## num2str (123.456) |
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33 ## @result{} "123.46" |
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34 ## |
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35 ## num2str (123.456, 4) |
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36 ## @result{} "123.5" |
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37 ## |
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38 ## s = num2str ([1, 1.34; 3, 3.56], "%5.1f") |
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39 ## @result{} s = |
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40 ## 1.0 1.3 |
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41 ## 3.0 3.6 |
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42 ## whos s |
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43 ## @result{} |
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44 ## Attr Name Size Bytes Class |
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45 ## ==== ==== ==== ===== ===== |
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46 ## s 2x8 16 char |
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47 ## |
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48 ## num2str (1.234 + 27.3i) |
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49 ## @result{} "1.234+27.3i" |
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50 ## @end group |
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51 ## @end example |
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52 ## |
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53 ## The @code{num2str} function is not very flexible. For better control |
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54 ## over the results, use @code{sprintf} (@pxref{Formatted Output}). |
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55 ## Note that for complex @var{x}, the format string may only contain one |
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56 ## output conversion specification and nothing else. Otherwise, you |
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57 ## will get unpredictable results. |
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58 ## @seealso{sprintf, int2str, mat2str} |
3361 | 59 ## @end deftypefn |
4 | 60 |
2314 | 61 ## Author: jwe |
62 | |
4229 | 63 function retval = num2str (x, arg) |
4 | 64 |
4878 | 65 if (nargin != 1 && nargin != 2) |
5947 | 66 print_usage (); |
4878 | 67 endif |
68 | |
5443 | 69 if (ischar (x)) |
4878 | 70 retval = x; |
5947 | 71 elseif (isempty (x)) |
72 retval = ""; | |
73 elseif (iscomplex (x)) | |
4878 | 74 if (nargin == 2) |
5443 | 75 if (ischar (arg)) |
10549 | 76 fmt = cstrcat (arg, "%-+", arg(2:end), "i"); |
4878 | 77 else |
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78 if (isnumeric (x) && x == fix (x) && abs (x) < (10 .^ arg)) |
10549 | 79 fmt = sprintf ("%%%dd%%-+%ddi ", arg, arg); |
80 else | |
81 fmt = sprintf ("%%%d.%dg%%-+%d.%dgi", arg+7, arg, arg+7, arg); | |
82 endif | |
4878 | 83 endif |
84 else | |
85 ## Setup a suitable format string | |
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86 if (isnumeric (x) && x == fix (x) && abs (x) < 1e10) |
10549 | 87 if (max (abs (real (x(:)))) == 0) |
88 dgt1 = 2; | |
89 else | |
90 dgt1 = ceil (log10 (max (max (abs (real (x(:)))), | |
91 max (abs (imag (x(:))))))) + 2; | |
92 endif | |
93 dgt2 = dgt1 - (min (real (x(:))) >= 0); | |
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94 |
10549 | 95 if (length (abs (x) == x) > 0) |
96 fmt = sprintf("%%%dg%%+-%dgi ", dgt2, dgt1); | |
97 else | |
98 fmt = sprintf("%%%dd%%+-%ddi ", dgt2, dgt1); | |
99 endif | |
4878 | 100 elseif (isscalar (x)) |
10549 | 101 fmt = "%.6g%-+.6gi"; |
4878 | 102 else |
10549 | 103 fmt = "%11.6g%-+11.6gi"; |
4878 | 104 endif |
105 endif | |
106 | |
107 ## Manipulate the complex value to have real values in the odd | |
4914 | 108 ## columns and imaginary values in the even columns. |
4878 | 109 sz = size (x); |
4914 | 110 nc = sz(2); |
4878 | 111 nd = ndims (x); |
4914 | 112 perm = fix ([1:0.5:nc+0.5]); |
113 perm(2:2:2*nc) = perm(2:2:2*nc) + nc; | |
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114 idx = repmat ({':'}, nd, 1); |
4914 | 115 idx{2} = perm; |
7208 | 116 x = horzcat (real (x), imag (x)); |
4914 | 117 x = x(idx{:}); |
5939 | 118 |
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119 fmt = cstrcat (deblank (repmat (fmt, 1, nc)), "\n"); |
4914 | 120 tmp = sprintf (fmt, permute (x, [2, 1, 3:nd])); |
4878 | 121 |
122 ## Put the "i"'s where they are supposed to be. | |
123 while (true) | |
124 tmp2 = strrep (tmp, " i\n", "i\n"); | |
4914 | 125 if (length (tmp) == length (tmp2)) |
10549 | 126 break; |
4878 | 127 else |
10549 | 128 tmp = tmp2; |
4878 | 129 endif |
130 endwhile | |
131 while (true) | |
132 tmp2 = strrep (tmp, " i", "i "); | |
133 if (tmp == tmp2) | |
10549 | 134 break; |
4878 | 135 else |
10549 | 136 tmp = tmp2; |
4878 | 137 endif |
138 endwhile | |
139 | |
140 tmp(length (tmp)) = ""; | |
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141 retval = char (strtrim (strsplit (tmp, "\n"))); |
4878 | 142 else |
4229 | 143 if (nargin == 2) |
5443 | 144 if (ischar (arg)) |
10549 | 145 fmt = arg; |
4229 | 146 else |
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147 if (isnumeric (x) && x == fix (x) && abs (x) < (10 .^ arg)) |
10549 | 148 fmt = sprintf ("%%%dd ", arg); |
149 else | |
150 fmt = sprintf ("%%%d.%dg", arg+7, arg); | |
151 endif | |
4229 | 152 endif |
4 | 153 else |
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154 if (isnumeric (x) && x == fix (x) && abs (x) < 1e10) |
10549 | 155 if (max (abs (x(:))) == 0) |
156 dgt = 2; | |
157 else | |
158 dgt = floor (log10 (max (abs(x(:))))) + (min (real (x(:))) < 0) + 2; | |
159 endif | |
160 if (length (abs (x) == x) > 0) | |
161 fmt = sprintf ("%%%dg ", dgt); | |
162 else | |
163 fmt = sprintf ("%%%dd ", dgt); | |
164 endif | |
4691 | 165 elseif (isscalar (x)) |
10549 | 166 fmt = "%11.5g"; |
4295 | 167 else |
10549 | 168 fmt = "%11.5g"; |
4295 | 169 endif |
4229 | 170 endif |
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171 fmt = cstrcat (deblank (repmat (fmt, 1, columns (x))), "\n"); |
4914 | 172 nd = ndims (x); |
173 tmp = sprintf (fmt, permute (x, [2, 1, 3:nd])); | |
4878 | 174 tmp(length (tmp)) = ""; |
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175 retval = strtrim (char (strsplit (tmp, "\n"))); |
4 | 176 endif |
177 | |
178 endfunction | |
7411 | 179 |
180 | |
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181 %!assert (num2str (123), "123") |
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182 %!assert (num2str (1.23), "1.23") |
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183 %!assert (num2str (123.456, 4), "123.5") |
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184 %!assert (num2str ([1, 1.34; 3, 3.56], "%5.1f"), ["1.0 1.3"; "3.0 3.6"]) |
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185 %!assert (num2str (1.234 + 27.3i), "1.234+27.3i") |
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186 |
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187 %!error num2str () |
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188 %!error num2str (1, 2, 3) |
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189 |