Mercurial > octave
view scripts/io/dlmwrite.m @ 30564:796f54d4ddbf stable
update Octave Project Developers copyright for the new year
In files that have the "Octave Project Developers" copyright notice,
update for 2021.
In all .txi and .texi files except gpl.txi and gpl.texi in the
doc/liboctave and doc/interpreter directories, change the copyright
to "Octave Project Developers", the same as used for other source
files. Update copyright notices for 2022 (not done since 2019). For
gpl.txi and gpl.texi, change the copyright notice to be "Free Software
Foundation, Inc." and leave the date at 2007 only because this file
only contains the text of the GPL, not anything created by the Octave
Project Developers.
Add Paul Thomas to contributors.in.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Tue, 28 Dec 2021 18:22:40 -0500 |
parents | 7854d5752dd2 |
children | 597f3ee61a48 |
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######################################################################## ## ## Copyright (C) 2002-2022 The Octave Project Developers ## ## See the file COPYRIGHT.md in the top-level directory of this ## distribution or <https://octave.org/copyright/>. ## ## This file is part of Octave. ## ## Octave is free software: you can redistribute it and/or modify it ## under the terms of the GNU General Public License as published by ## the Free Software Foundation, either version 3 of the License, or ## (at your option) any later version. ## ## Octave is distributed in the hope that it will be useful, but ## WITHOUT ANY WARRANTY; without even the implied warranty of ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ## GNU General Public License for more details. ## ## You should have received a copy of the GNU General Public License ## along with Octave; see the file COPYING. If not, see ## <https://www.gnu.org/licenses/>. ## ######################################################################## ## -*- texinfo -*- ## @deftypefn {} {} dlmwrite (@var{file}, @var{M}) ## @deftypefnx {} {} dlmwrite (@var{file}, @var{M}, @var{delim}, @var{r}, @var{c}) ## @deftypefnx {} {} dlmwrite (@var{file}, @var{M}, @var{key}, @var{val} @dots{}) ## @deftypefnx {} {} dlmwrite (@var{file}, @var{M}, "-append", @dots{}) ## @deftypefnx {} {} dlmwrite (@var{fid}, @dots{}) ## Write the numeric matrix @var{M} to the text file @var{file} using a ## delimiter. ## ## @var{file} should be a filename or a writable file ID given by @code{fopen}. ## ## The parameter @var{delim} specifies the delimiter to use to separate values ## on a row. If no delimiter is specified the comma character @samp{,} is ## used. ## ## The value of @var{r} specifies the number of delimiter-only lines to add to ## the start of the file. ## ## The value of @var{c} specifies the number of delimiters to prepend to each ## line of data. ## ## If the argument @qcode{"-append"} is given, append to the end of @var{file}. ## ## In addition, the following keyword value pairs may appear at the end of ## the argument list: ## ## @table @asis ## @item @qcode{"append"} ## Either @qcode{"on"} or @qcode{"off"}. See @qcode{"-append"} above. ## ## @item @qcode{"delimiter"} ## See @var{delim} above. ## ## @item @qcode{"newline"} ## The character(s) to separate each row. Three special cases exist for this ## option. @qcode{"unix"} is changed into @qcode{"@backslashchar{}n"}, ## @qcode{"pc"} is changed into @qcode{"@backslashchar{}r@backslashchar{}n"}, ## and @qcode{"mac"} is changed into @qcode{"@backslashchar{}r"}. Any other ## value is used directly as the newline separator. ## ## @item @qcode{"roffset"} ## See @var{r} above. ## ## @item @qcode{"coffset"} ## See @var{c} above. ## ## @item @qcode{"precision"} ## The precision to use when writing the file. It can either be a format ## string (as used by fprintf) or a number of significant digits. ## @end table ## ## @example ## dlmwrite ("file.csv", reshape (1:16, 4, 4)); ## @end example ## ## @example ## dlmwrite ("file.tex", a, "delimiter", "&", "newline", "\n") ## @end example ## ## @seealso{dlmread, csvread, csvwrite} ## @end deftypefn ## Author: Paul Kienzle <pkienzle@users.sf.net> ## ## This program was originally granted to the public domain ## ## 2002-03-08 Paul Kienzle <pkienzle@users.sf.net> ## * Initial revision ## 2005-11-27 Bill Denney <bill@givebillmoney.com> ## * Significant modifications of the input arguments for additional ## functionality. function dlmwrite (file, M, varargin) if (nargin < 2) print_usage (); endif ## set defaults delim = ","; r = c = 0; newline = "\n"; if (ischar (M)) precision = "%c"; else precision = "%.16g"; endif opentype = "wt"; ## process the input arguments i = 0; while (i < length (varargin)) i += 1; if (strcmpi (varargin{i}, "delimiter")) delim = varargin{++i}; elseif (strcmpi (varargin{i}, "newline")) newline = varargin{++i}; if (strcmpi (newline, "unix")) newline = "\n"; elseif (strcmpi (newline, "pc")) newline = "\r\n"; elseif (strcmpi (newline, "mac")) newline = "\r"; endif elseif (strcmpi (varargin{i}, "roffset")) r = varargin{++i}; elseif (strcmpi (varargin{i}, "coffset")) c = varargin{++i}; elseif (strcmpi (varargin{i}, "precision")) precision = varargin{++i}; if (! strcmpi (class (precision), "char")) precision = sprintf ("%%.%gg", precision); endif elseif (strcmpi (varargin{i}, "-append")) opentype = "at"; elseif (strcmpi (varargin{i}, "append")) i += 1; if (strcmpi (varargin{i}, "on")) opentype = "at"; elseif (strcmpi (varargin{i}, "off")) opentype = "wt"; else error ('dlmwrite: append must be "on" or "off"'); endif else if (i == 1) delim = varargin{i}; elseif (i == 2) r = varargin{i}; elseif (i == 3) c = varargin{i}; else print_usage (); endif endif endwhile ## Expand '\t' to TAB for Matlab compatibility if (strcmp (delim, '\t')) delim = "\t"; endif if (ischar (file)) [fid, msg] = fopen (file, opentype); elseif (is_valid_file_id (file)) [fid, msg] = deal (file, "invalid file number"); else error ("dlmwrite: FILE must be a filename string or numeric FID"); endif if (fid < 0) error (["dlmwrite: " msg]); else if (r > 0) fprintf (fid, "%s", repmat ([repmat(delim, 1, c + columns(M)-1), newline], 1, r)); endif if (iscomplex (M)) cprecision = regexprep (precision, '^%([-\d.])', '%+$1'); template = [precision, cprecision, "i", ... repmat([delim, precision, cprecision, "i"], 1, ... columns(M) - 1), newline ]; else template = [precision, repmat([delim, precision], 1, columns(M)-1),... newline]; endif if (c > 0) template = [repmat(delim, 1, c), template]; endif if (iscomplex (M)) M = M.'; b = zeros (2*rows (M), columns (M)); b(1: 2 : end, :) = real (M); b(2: 2 : end, :) = imag (M); fprintf (fid, template, b); else fprintf (fid, template, M.'); endif if (ischar (file)) fclose (fid); endif endif endfunction %!test %! f = tempname (); %! dlmwrite (f,[1,2;3,4],"precision","%5.2f","newline","unix","roffset",1,"coffset",1); %! fid = fopen (f,"rt"); %! f1 = char (fread (fid,Inf,"char")'); %! fclose (fid); %! dlmwrite (f,[5,6],"precision","%5.2f","newline","unix","coffset",1,"delimiter",",","-append"); %! fid = fopen (f,"rt"); %! f2 = char (fread (fid,Inf,"char")'); %! fclose (fid); %! unlink (f); %! %! assert (f1,",,\n, 1.00, 2.00\n, 3.00, 4.00\n"); %! assert (f2,",,\n, 1.00, 2.00\n, 3.00, 4.00\n, 5.00, 6.00\n");