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Added (some of the) calculations for the examine command.
[pspp]
/
src
/
moments.c
diff --git
a/src/moments.c
b/src/moments.c
index c993f7ae0a6d3c65e3c67f8fa891e5fa12b60771..c4f3fe18db76573a38c5a8869540f64a0a6aa19a 100644
(file)
--- a/
src/moments.c
+++ b/
src/moments.c
@@
-62,9
+62,9
@@
calc_moments (enum moment max_moment,
}
if (max_moment >= MOMENT_KURTOSIS && kurtosis != NULL && w > 3.)
{
}
if (max_moment >= MOMENT_KURTOSIS && kurtosis != NULL && w > 3.)
{
- double
g2 = ((w * (w + 1.) * d4
- - 3. * pow2 (d2) * (w - 1.))
-
/ ((w - 1.) * (w - 2.) * (w - 3.) * pow2 (s2))
);
+ double
den = (w - 2.) * (w - 3.) * pow2 (s2);
+ double g2 = (w * (w + 1) * d4 / (w - 1.) / den
+
- 3. * pow2 (d2) / den
);
if (finite (g2))
*kurtosis = g2;
}
if (finite (g2))
*kurtosis = g2;
}