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annotate scripts/general/num2str.m @ 4295:fea24da316a2

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[project @ 2003-01-11 04:23:24 by jwe]
author jwe
date Sat, 11 Jan 2003 04:23:24 +0000
parents 40153a2affd6
children bdc51b369a78
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1 ## Copyright (C) 1996, 1997 John W. Eaton
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2 ##
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3 ## This file is part of Octave.
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4 ##
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5 ## Octave is free software; you can redistribute it and/or modify it
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6 ## under the terms of the GNU General Public License as published by
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7 ## the Free Software Foundation; either version 2, or (at your option)
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8 ## any later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 ## General Public License for more details.
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14 ##
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15 ## You should have received a copy of the GNU General Public License
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16 ## along with Octave; see the file COPYING. If not, write to the Free
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17 ## Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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18 ## 02111-1307, USA.
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20 ## -*- texinfo -*-
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21 ## @deftypefn {Function File} {} int2str (@var{n})
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22 ## @deftypefnx {Function File} {} num2str (@var{x}, @var{precision})
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23 ## @deftypefnx {Function File} {} num2str (@var{x}, @var{format})
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24 ## Convert a number to a string. These functions are not very flexible,
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25 ## but are provided for compatibility with @sc{Matlab}. For better control
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26 ## over the results, use @code{sprintf} (@pxref{Formatted Output}).
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27 ## @end deftypefn
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28 ## @seealso{sprintf and int2str}
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30 ## Author: jwe
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31
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32 function retval = num2str (x, arg)
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33
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34 if (nargin == 1 || nargin == 2)
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35 if (nargin == 2)
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36 if (isstr (arg))
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37 fmt = arg;
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38 else
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39 fmt = sprintf ("%%.%dg", arg);
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40 endif
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41 else
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42 if (isscalar (x))
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43 fmt = "%.4g";
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44 else
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45 fmt = "%11.4g";
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46 endif
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47 endif
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48 if (iscomplex (x))
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49 error ("num2str: sorry, can't handle complex numbers yet");
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50 else
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51 fmt = strcat (repmat (fmt, 1, columns (x)), "\n");
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52 tmp = sprintf (fmt, x.');
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53 tmp(length (tmp)) = "";
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54 retval = split (tmp, "\n");
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55 endif
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56 else
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57 usage ("num2str (x) or num2str (x, precision) or num2str (x, fmt)");
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58 endif
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59
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60 endfunction