1 files changed, 1 insertions, 0 deletions
diff --git a/src/misc.h b/src/misc.h
index 3a55c2f..94ccee7 100644
--- a/src/misc.h
+++ b/src/misc.h
@@ -26,5 +26,6 @@ double norm(double x, double mu, double sigma);
 double norm_cdf(double x, double mu, double sigma);
 double mean(const double *x, size_t n);
 double std(const double *x, size_t n);
+double gamma_pdf(double x, double k, double theta);
 
 #endif