X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Flanguage%2Fstats%2Fkruskal-wallis.c;h=ae388068cf9877c055219bc7d51505781c2b2955;hb=81579d9e9f994fb2908f50af41c3eb033d216e58;hp=51ee291f95651be59c024cf4c57c49c8528e3769;hpb=471d0e518a94de5305b4697f25641464761ef910;p=pspp-builds.git

diff --git a/src/language/stats/kruskal-wallis.c b/src/language/stats/kruskal-wallis.c
index 51ee291f..ae388068 100644
--- a/src/language/stats/kruskal-wallis.c
+++ b/src/language/stats/kruskal-wallis.c
@@ -1,5 +1,5 @@
 /* Pspp - a program for statistical analysis.
-   Copyright (C) 2010 Free Software Foundation, Inc.
+   Copyright (C) 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
@@ -22,25 +22,25 @@
 #include <gsl/gsl_cdf.h>
 #include <math.h>
 
-#include <data/casereader.h>
-#include <data/casewriter.h>
-#include <data/dictionary.h>
-#include <data/format.h>
-#include <data/procedure.h>
-#include <data/subcase.h>
-#include <data/variable.h>
-
-#include <libpspp/assertion.h>
-#include <libpspp/message.h>
-#include <libpspp/misc.h>
-#include <libpspp/hmap.h>
-#include <math/sort.h>
-
-
-#include "minmax.h"
-#include "xalloc.h"
-
-
+#include "data/casereader.h"
+#include "data/casewriter.h"
+#include "data/dictionary.h"
+#include "data/format.h"
+#include "data/procedure.h"
+#include "data/subcase.h"
+#include "data/variable.h"
+#include "libpspp/assertion.h"
+#include "libpspp/hmap.h"
+#include "libpspp/message.h"
+#include "libpspp/misc.h"
+#include "math/sort.h"
+#include "output/tab.h"
+
+#include "gl/minmax.h"
+#include "gl/xalloc.h"
+
+
+/* Returns true iff the independent variable lies in the range [nst->val1, nst->val2] */
 static bool
 include_func (const struct ccase *c, void *aux)
 {
@@ -65,6 +65,7 @@ struct rank_entry
   double n;
 };
 
+/* Return the entry with the key GROUP or null if there is no such entry */
 static struct rank_entry *
 find_rank_entry (const struct hmap *map, const union value *group, size_t width)
 {
@@ -80,6 +81,7 @@ find_rank_entry (const struct hmap *map, const union value *group, size_t width)
   return re;
 }
 
+/* Calculates the adjustment necessary for tie compensation */
 static void
 distinct_callback (double v UNUSED, casenumber t, double w UNUSED, void *aux)
 {
@@ -181,6 +183,7 @@ kruskal_wallis_execute (const struct dataset *ds,
 
       casereader_destroy (rr);
 
+      /* Calculate the value of h */
       {
 	struct rank_entry *mre;
 	double n = 0.0;
@@ -204,6 +207,7 @@ kruskal_wallis_execute (const struct dataset *ds,
   show_ranks_box (nst, kw, total_n_groups);
   show_sig_box (nst, kw);
 
+  /* Cleanup allocated memory */
   for (i = 0 ; i < nst->n_vars; ++i)
     {
       struct rank_entry *mre, *next;
@@ -219,7 +223,6 @@ kruskal_wallis_execute (const struct dataset *ds,
 }
 
 
-#include <output/tab.h>
 #include "gettext.h"
 #define _(msgid) gettext (msgid)