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-rw-r--r--src/statistics.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/statistics.h b/src/statistics.h
index 6a8efb50..18603357 100644
--- a/src/statistics.h
+++ b/src/statistics.h
@@ -37,6 +37,8 @@ extern double stat_rdiff_zero(const double *ref1, const double *ref2,
ReflItemList *items, double *scalep);
extern double stat_rdiff_ignore(const double *ref1, const double *ref2,
ReflItemList *items, double *scalep);
+extern double stat_rdiff_intensity(const double *ref1, const double *ref2,
+ ReflItemList *items, double *scalep);
extern double stat_pearson_i(const double *ref1, const double *ref2,
ReflItemList *items);