X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fmath%2Fmoments.c;h=83cbbe4ca1fb3e4c2d4e2a6497ed84ced68b0c31;hb=8fee80becb97ba397876d1917dcac04904f16630;hp=e289e8aec0ef27c2372e2c007eeb30e6b2f6d469;hpb=81579d9e9f994fb2908f50af41c3eb033d216e58;p=pspp

diff --git a/src/math/moments.c b/src/math/moments.c
index e289e8aec0..83cbbe4ca1 100644
--- a/src/math/moments.c
+++ b/src/math/moments.c
@@ -461,6 +461,13 @@ moments1_destroy (struct moments1 *m)
   free (m);
 }
 
+
+double
+calc_semean (double var, double W)
+{
+  return sqrt (var / W);
+}
+
 /* Returns the standard error of the skewness for the given total
    weight W.