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## See the file COPYRIGHT.md in the top-level directory of this
## distribution or <https://octave.org/copyright/>.
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## -*- texinfo -*-
## @deftypefn  {} {} csvwrite (@var{filename}, @var{x})
## @deftypefnx {} {} csvwrite (@var{filename}, @var{x}, @var{dlm_opt1}, @dots{})
## Write the numeric matrix @var{x} to the file @var{filename} in
## @w{comma-separated-value} (CSV) format.
##
## This function is equivalent to
##
## @example
## dlmwrite (@var{filename}, @var{x}, ",", @var{dlm_opt1}, @dots{})
## @end example
##
## Any optional arguments are passed directly to @code{dlmwrite}
## (@pxref{XREFdlmwrite,,@code{dlmwrite}}).
## @seealso{csvread, dlmwrite, dlmread}
## @end deftypefn

function csvwrite (filename, x, varargin)
  dlmwrite (filename, x, ",", varargin{:});
endfunction


%!shared fname
%! fname = tempname ();

%!test
%! csvwrite (fname, magic (3));
%! data = csvread (fname);
%! unlink (fname);
%! assert (data, magic (3));

%!test
%! csvwrite (fname, magic (3), "precision", "%2.1f", "newline", "unix");
%! fid = fopen (fname, "rt");
%! txt = char (fread (fid,Inf,'char')');
%! fclose (fid);
%! unlink (fname);
%! assert (txt, "8.0,1.0,6.0\n3.0,5.0,7.0\n4.0,9.0,2.0\n");