Readjust histogram parameters if on the first attempt, the number of bins is too...

[pspp] / src / math / moments.c

diff --git a/src/math/moments.c b/src/math/moments.c
index 545c9644399a9501765455cfc99505be30e8d460..83cbbe4ca1fb3e4c2d4e2a6497ed84ced68b0c31 100644 (file)
--- a/src/math/moments.c
+++ b/src/math/moments.c
@@ -1,5 +1,5 @@
 /* PSPP - a program for statistical analysis.
-   Copyright (C) 1997-9, 2000, 2010 Free Software Foundation, Inc.
+   Copyright (C) 1997-9, 2000, 2010, 2011 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -15,15 +15,18 @@
    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
 
 #include <config.h>
-#include "moments.h"
+
+#include "math/moments.h"
+
 #include <assert.h>
 #include <math.h>
 #include <stdlib.h>
-#include <libpspp/misc.h>
-#include <data/val-type.h>
-#include <data/value.h>
 
-#include "xalloc.h"
+#include "data/val-type.h"
+#include "data/value.h"
+#include "libpspp/misc.h"
+
+#include "gl/xalloc.h"
 
 #include "gettext.h"
 #define _(msgid) gettext (msgid)
@@ -458,6 +461,13 @@ moments1_destroy (struct moments1 *m)
   free (m);
 }
 \f
+
+double
+calc_semean (double var, double W)
+{
+  return sqrt (var / W);
+}
+
 /* Returns the standard error of the skewness for the given total
    weight W.