Changed all the licence notices in all the files.

[pspp-builds.git] / src / factor_stats.h

diff --git a/src/factor_stats.h b/src/factor_stats.h
index cf660c6a1b25ec7634113ddd0e3c0fc91c0b8711..02a69db32e42d82add7516c812da94d4041857d1 100644 (file)
--- a/src/factor_stats.h
+++ b/src/factor_stats.h
@@ -15,8 +15,8 @@ General Public License for more details.
 
 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., 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA. */
 
 #ifndef FACTOR_STATS
 #define FACTOR_STATS
@@ -27,6 +27,12 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 
 #include "hash.h"
 #include "val.h"
+#include <string.h>
+#include <gsl/gsl_histogram.h>
+#include "subclist.h"
+#include "percentiles.h"
+
+struct moments1;
 
 struct metrics
 {
@@ -34,33 +40,53 @@ struct metrics
 
   double n_missing;
   
-  double ssq;
-  
-  double sum;
-
   double min;
 
   double max;
 
   double mean;
   
-  double stderr;
+  double se_mean;
 
   double var;
 
   double stddev;
 
+  struct moments1 *moments;
+
+  gsl_histogram *histogram;
+
+  double skewness;
+  double kurtosis;
+
   double trimmed_mean;
 
-  /* A hash of data for this factor */
+  /* A hash of data for this factor. */
   struct hsh_table *ordered_data;
 
-  /* A SORTED array of weighted values */
-  struct weighted_value *wv;
-};
+  /* A Pointer to this hash table AFTER it has been SORTED and crunched */
+  struct weighted_value **wvp;
+
+  /* The number of values in the above array
+     (if all the weights are 1, then this will
+     be the same as n) */
+  int n_data;
+
+  /* Percentile stuff */
+
+  /* A hash of struct percentiles */
+  struct hsh_table *ptile_hash;
 
+  /* Algorithm to be used for calculating percentiles */
+  enum pc_alg ptile_alg;
 
+  /* Tukey's Hinges */
+  double hinge[3];
 
+};
+
+
+struct metrics * metrics_create(void);
 
 void metrics_precalc(struct metrics *m);
 
@@ -69,6 +95,9 @@ void metrics_calc(struct metrics *m, const union value *f, double weight,
 
 void metrics_postcalc(struct metrics *m);
 
+void  metrics_destroy(struct metrics *m);
+
+
 
 /* Linked list of case nos */
 struct case_node
@@ -104,12 +133,14 @@ void weighted_value_free(struct weighted_value *wv);
 
 struct factor_statistics {
 
-  /* The value of the independent variable */
+  /* The values of the independent variables */
   union value id[2];
 
   /* The an array stats for this factor, one for each dependent var */
   struct metrics *m;
 
+  /* The number of dependent variables */
+  int n_var;
 };
 
 
@@ -122,18 +153,15 @@ create_factor_statistics (int n, union value *id0, union value *id1);
 void factor_statistics_free(struct factor_statistics *f);
 
 
+/* Compare f0 and f1.
+   width is the width of the independent variable */
 int 
 factor_statistics_compare(const struct factor_statistics *f0,
-                         const struct factor_statistics *f1, void *aux);
+                         const struct factor_statistics *f1, int width);
 
                              
 
 unsigned int 
-factor_statistics_hash(const struct factor_statistics *f, void *aux);
-
-
-
-
-
+factor_statistics_hash(const struct factor_statistics *f, int width);
 
 #endif