/usr/share/doc/libplplot11/examples/octave/p3.m is in octave-plplot 5.9.9-2ubuntu2.
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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 | ## Copyright (C) 1998-2003 Joao Cardoso.
##
## This program 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 of the License, or (at your
## option) any later version.
##
## This program 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.
##
## This file is part of plplot_octave.
function p3
global pl_automatic_replot;
t = pl_automatic_replot;
pl_automatic_replot = 0;
xscale = 6.;
yscale = 1.;
xoff = 0.;
yoff = 0.;
m=60;
x = xoff + xscale * ((1:m) + 1) / m;
y = yoff + yscale * (x.^2);
n=5;
xs = x((1:n) * 10 + 3);
ys = y((1:n) * 10 + 3);
xe = (1:n)./5;
yel = ys - (1:n);
yer = ys + 2*(1:n);
## Plot the data points */
title("#frPLplot Example 3 - y=x#u2 #d(with error bars)");
plot(x, y, [xs' xe'], [ys' yel' yer'], '~g; ;');
pl_automatic_replot = t;
endfunction
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