/usr/share/plplot_octave/support/__plt2__.m is in octave-plplot 5.9.9-2ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 | ## 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 __plt2__ (x1, x2, fmt)
if (nargin < 2 || nargin > 3)
usage ("__plt2__ (x1, x2, fmt)");
endif
if (nargin == 2)
fmt = "";
endif
if (! ischar (fmt))
error ("__plt2__: fmt must be a string");
endif
if (any (any (imag (x1))))
x1 = real (x1);
endif
if (any (any (imag (x2))))
x2 = real (x2);
endif
if (isscalar (x1))
if (isscalar (x2))
__plt2ss__ (x1, x2, fmt);
endif
elseif (isvector (x1))
if (isvector (x2))
__plt2vv__ (x1, x2, fmt);
elseif (ismatrix (x2))
__plt2vm__ (x1, x2, fmt);
endif
elseif (ismatrix (x1))
if (isvector (x2))
__plt2mv__ (x1, x2, fmt);
elseif (ismatrix (x2))
__plt2mm__ (x1, x2, fmt);
endif
endif
endfunction
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