1 /* PSPP - A program for statistical analysis . -*-c-*-
3 Copyright (C) 2004 Free Software Foundation, Inc.
4 Author: John Darrington 2004
6 This program is free software; you can redistribute it and/or
7 modify it under the terms of the GNU General Public License as
8 published by the Free Software Foundation; either version 2 of the
9 License, or (at your option) any later version.
11 This program is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
25 /* FIXME: These things should probably be amalgamated with the
26 group_statistics struct */
52 struct moments1 *moments;
59 /* A hash of data for this factor.
61 struct hsh_table *ordered_data;
63 /* A Pointer to this hash table AFTER it has been SORTED and crunched */
64 struct weighted_value **wvp;
67 /* The number of values in the above array
68 (if all the weights are 1, then this will
76 void metrics_precalc(struct metrics *m);
78 void metrics_calc(struct metrics *m, const union value *f, double weight,
81 void metrics_postcalc(struct metrics *m);
84 /* Linked list of case nos */
88 struct case_node *next;
98 /* The cumulative weight */
104 /* Linked list of cases nos which have this value */
105 struct case_node *case_nos;
110 struct weighted_value *weighted_value_create(void);
112 void weighted_value_free(struct weighted_value *wv);
116 struct factor_statistics {
118 /* The values of the independent variables */
121 /* The an array stats for this factor, one for each dependent var */
127 /* Create a factor statistics object with for N dependent vars
128 and ID as the value of the independent variable */
129 struct factor_statistics *
130 create_factor_statistics (int n, union value *id0, union value *id1);
133 void factor_statistics_free(struct factor_statistics *f);
136 /* Compare f0 and f1.
137 width is the width of the independent variable */
139 factor_statistics_compare(const struct factor_statistics *f0,
140 const struct factor_statistics *f1, int width);
145 factor_statistics_hash(const struct factor_statistics *f, int width);