#include <gsl/gsl_cdf.h>
#include "data/casereader.h"
+#include "data/variable.h"
#include "libpspp/cast.h"
#include "output/chart-item-provider.h"
/* Creates a scatterplot */
struct scatterplot_chart *
-scatterplot_create (const struct casereader *reader,
+scatterplot_create (struct casereader *reader,
const char *xlabel,
const char *ylabel,
const struct variable *byvar,