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-rw-r--r--libcrystfel/src/histogram.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/libcrystfel/src/histogram.h b/libcrystfel/src/histogram.h
index 807fb44d..1b6f6bb0 100644
--- a/libcrystfel/src/histogram.h
+++ b/libcrystfel/src/histogram.h
@@ -44,6 +44,7 @@ extern void histogram_show(Histogram *hi);
extern int *histogram_get_data(Histogram *hi, double *min, double *max, int *n);
extern double histogram_get_min(Histogram *hi);
extern double histogram_get_max(Histogram *hi);
+extern int histogram_get_num_bins(Histogram *hi);
extern void histogram_set_min(Histogram *hi, double min);
extern void histogram_set_max(Histogram *hi, double max);
extern void histogram_set_num_bins(Histogram *hi, int n);