#include <math.h>
-#include "chart-geometry.h"
-#include "chart.h"
-#include "str.h"
-#include "alloc.h"
-#include "manager.h"
-#include "output.h"
+#include <math/chart-geometry.h>
+#include <output/chart.h>
+
+#include <libpspp/str.h>
+#include <libpspp/alloc.h>
+#include <output/manager.h>
+#include <output/output.h>
#ifndef PLOT_CHART_H
/* Set the scale for the ordinate */
void chart_write_yscale(struct chart *ch, double smin, double smax, int ticks);
+void chart_write_xlabel(struct chart *ch, const char *label) ;
+
+/* Write the ordinate label */
+void chart_write_ylabel(struct chart *ch, const char *label);
#endif