pspp-output: Add new --nth-commands option.

[pspp] / src / output / charts / scatterplot.c

diff --git a/src/output/charts/scatterplot.c b/src/output/charts/scatterplot.c
index 2c3ffd683f23c7aa1e8d70ca7c7d9e73b8194b8c..69b53b6751a04c1ed3ed6fdec5f9916129abf7af 100644 (file)
--- a/src/output/charts/scatterplot.c
+++ b/src/output/charts/scatterplot.c
@@ -21,6 +21,7 @@
 #include <gsl/gsl_cdf.h>
 
 #include "data/casereader.h"
+#include "data/variable.h"
 #include "libpspp/cast.h"
 #include "output/chart-item-provider.h"
 
@@ -28,7 +29,7 @@
 
 /* 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,
@@ -65,7 +66,7 @@ scatterplot_chart_destroy (struct chart_item *chart_item)
   free (spc->xlabel);
   free (spc->ylabel);
   if (spc->byvar)
-    var_destroy (spc->byvar);
+    var_unref (spc->byvar);
   free (spc);
 }