1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 2014, 2015 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19 #include "output/charts/scatterplot.h"
21 #include <gsl/gsl_cdf.h>
23 #include "data/casereader.h"
24 #include "data/variable.h"
25 #include "libpspp/cast.h"
26 #include "output/chart-provider.h"
28 #include "gl/minmax.h"
30 /* Creates a scatterplot */
31 struct scatterplot_chart *
32 scatterplot_create (struct casereader *reader,
35 const struct variable *byvar,
38 double xmin, double xmax, double ymin, double ymax)
40 struct scatterplot_chart *spc = XZALLOC (struct scatterplot_chart);
41 chart_init (&spc->chart, &scatterplot_chart_class, label);
50 spc->xlabel = xstrdup (xlabel);
51 spc->ylabel = xstrdup (ylabel);
52 spc->byvar = byvar != NULL ? var_clone (byvar) : NULL;
54 spc->byvar_overflow = byvar_overflow;
60 scatterplot_chart_destroy (struct chart *chart)
62 struct scatterplot_chart *spc = to_scatterplot_chart (chart);
63 casereader_destroy (spc->data);
67 var_unref (spc->byvar);
71 const struct chart_class scatterplot_chart_class =
73 scatterplot_chart_destroy