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## Copyright (C) 1996 John W. Eaton
##
## 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 2, 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.
## Author: jwe
## Modified: jc
function __plt1__ (x1, fmt)
if (nargin < 1 || nargin > 2)
usage ("__plt1__ (x1, fmt)");
endif
if (nargin == 1)
fmt = "";
endif
if (! isstr (fmt))
error ("__plt1__: fmt must be a string");
endif
[nr, nc] = size (x1);
if (nr == 1)
x1 = x1.';
tmp = nr;
nr = nc;
nc = tmp;
endif
x1_i = imag (x1);
if (any (any (x1_i)))
x2 = x1_i;
x1 = real (x1);
else
x2 = x1;
x1 = (1:nr)';
endif
__plt2__ (x1, x2, fmt);
endfunction
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