1 /* PSPP - computes sample statistics.
2 Copyright (C) 2004 Free Software Foundation, Inc.
3 Written by John Darrington <john@darrington.wattle.id.au>
5 This program is free software; you can redistribute it and/or
6 modify it under the terms of the GNU General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 License, or (at your option) any later version.
10 This program is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
34 /* Plot a data point */
35 void chart_datum(struct chart *ch, int dataset UNUSED, double x, double y);
37 /* Draw a line with slope SLOPE and intercept INTERCEPT.
38 between the points limit1 and limit2.
39 If lim_dim is CHART_DIM_Y then the limit{1,2} are on the
40 y axis otherwise the x axis
42 void chart_line(struct chart *ch, double slope, double intercept,
43 double limit1, double limit2, enum CHART_DIM lim_dim);