X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fmath%2Fpercentiles.h;h=0dd09820945e1bafaee5a017ba3756cb4197783b;hb=ebbfbe937906e4b4ca577478965cf06d1a812715;hp=87ef708af2af7a3c2d3168bbc3d2437ceec2a3e5;hpb=f5c108becd49d78f4898cab11352291f5689d24e;p=pspp-builds.git
diff --git a/src/math/percentiles.h b/src/math/percentiles.h
index 87ef708a..0dd09820 100644
--- a/src/math/percentiles.h
+++ b/src/math/percentiles.h
@@ -1,29 +1,25 @@
-/* PSPP - A program for statistical analysis . -*-c-*-
+/* PSPP - a program for statistical analysis.
+ Copyright (C) 2004, 2008 Free Software Foundation, Inc.
-Copyright (C) 2004 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
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
-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 the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-This program is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see . */
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301, USA. */
+#ifndef __PERCENTILES_H__
+#define __PERCENTILES_H__
-#ifndef PERCENTILES_H
-#define PERCENTILES_H
+#include
-
-#include
-
-struct weighted_value ;
+#include "order-stats.h"
/* The algorithm used to calculate percentiles */
enum pc_alg {
@@ -35,48 +31,33 @@ enum pc_alg {
PC_AEMPIRICAL
} ;
-
-
extern const char *const ptile_alg_desc[];
+struct percentile
+{
+ struct order_stats parent;
+ double ptile;
+ double w;
-struct percentile {
-
- /* The break point of the percentile */
- double p;
+ /* Mutable */
+ double g1;
+ double g1_star;
- /* The value of the percentile */
- double v;
+ double g2;
+ double g2_star;
};
-
-/* Calculate the percentiles of the break points in pc_bp,
- placing the values in pc_val.
- wv is a sorted array of weighted values of the data set.
+/* Create the Pth percentile.
+ W is the total sum of weights in the data set
*/
-void ptiles(struct hsh_table *pc_hash,
- const struct weighted_value **wv,
- int n_data,
- double w,
- enum pc_alg algorithm);
-
-
-/* Calculate Tukey's Hinges and the Whiskers for the box plot*/
-void tukey_hinges(const struct weighted_value **wv,
- int n_data,
- double w,
- double hinges[3]);
-
-
+struct order_stats *percentile_create (double p, double W);
-/* Hash utility functions */
-int ptile_compare(const struct percentile *p1,
- const struct percentile *p2,
- void *aux);
+/* Return the value of the percentile */
+double percentile_calculate (const struct percentile *ptl, enum pc_alg alg);
-unsigned ptile_hash(const struct percentile *p, void *aux);
+void percentile_dump (const struct percentile *ptl);
#endif