/* PSPP - a program for statistical analysis.
- Copyright (C) 2014 Free Software Foundation, Inc.
+ Copyright (C) 2014, 2015 Free Software Foundation, Inc.
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
#include <gsl/gsl_cdf.h>
#include "data/casereader.h"
+#include "data/variable.h"
#include "libpspp/cast.h"
#include "output/chart-item-provider.h"
#include "gl/minmax.h"
-
-/* Creates a scatterplot
-
- The caller retains ownership of READER. */
+/* Creates a scatterplot */
struct scatterplot_chart *
-scatterplot_create (const struct casereader *reader,
- const struct variable *xvar,
- const struct variable *yvar,
+scatterplot_create (struct casereader *reader,
+ const char *xlabel,
+ const char *ylabel,
const struct variable *byvar,
bool *byvar_overflow,
const char *label,
spc = xzalloc (sizeof *spc);
chart_item_init (&spc->chart_item, &scatterplot_chart_class, label);
- spc->data = casereader_clone (reader);
+ spc->data = reader;
spc->y_min = ymin;
spc->y_max = ymax;
spc->x_min = xmin;
spc->x_max = xmax;
- spc->xvar = xvar;
- spc->yvar = yvar;
- spc->byvar = byvar;
+ spc->xlabel = xstrdup (xlabel);
+ spc->ylabel = xstrdup (ylabel);
+ spc->byvar = byvar != NULL ? var_clone (byvar) : NULL;
+
spc->byvar_overflow = byvar_overflow;
return spc;
{
struct scatterplot_chart *spc = to_scatterplot_chart (chart_item);
casereader_destroy (spc->data);
+ free (spc->xlabel);
+ free (spc->ylabel);
+ if (spc->byvar)
+ var_destroy (spc->byvar);
free (spc);
}