1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 2006 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
18 #include <output/table.h>
19 #include <data/casereader.h>
20 #include <libpspp/hash.h>
21 #include <data/variable.h>
22 #include "npar-summary.h"
23 #include <math/moments.h>
24 #include <data/case.h>
25 #include <data/dictionary.h>
30 #define _(msgid) gettext (msgid)
34 npar_summary_calc_descriptives (struct descriptives *desc,
35 struct casereader *input,
36 const struct dictionary *dict,
37 const struct variable *const *vv,
44 double minimum = DBL_MAX;
45 double maximum = -DBL_MAX;
47 struct moments1 *moments = moments1_create (MOMENT_VARIANCE);
49 const struct variable *v = *vv++;
50 struct casereader *pass;
52 pass = casereader_clone (input);
53 pass = casereader_create_filter_missing (pass,
56 pass = casereader_create_filter_weight (pass, dict, NULL, NULL);
57 while (casereader_read(pass, &c))
59 double val = case_num (&c, v);
60 double w = dict_get_case_weight (dict, &c, NULL);
61 minimum = MIN (minimum, val);
62 maximum = MAX (maximum, val);
63 moments1_add (moments, val, w);
66 casereader_destroy (pass);
68 moments1_calculate (moments,
74 desc[i].std_dev = sqrt (var);
76 moments1_destroy (moments);
78 desc[i].min = minimum;
79 desc[i].max = maximum;
83 casereader_destroy (input);
89 do_summary_box (const struct descriptives *desc,
90 const struct variable *const *vv,
94 bool quartiles = false;
98 struct tab_table *table ;
101 if ( desc ) columns += 5;
102 if ( quartiles ) columns += 3;
104 table = tab_create (columns, 2 + n_vars, 0);
106 tab_dim (table, tab_natural_dimensions);
108 tab_title (table, _("Descriptive Statistics"));
110 tab_headers (table, 1, 0, 1, 0);
112 tab_box (table, TAL_1, TAL_1, -1, TAL_1,
113 0, 0, table->nc - 1, tab_nr(table) - 1 );
115 tab_hline (table, TAL_2, 0, tab_nc (table) -1, 2);
116 tab_vline (table, TAL_2, 1, 0, tab_nr (table) - 1);
121 tab_joint_text (table, col, 0, col, 1, TAT_TITLE | TAB_CENTER,
124 tab_joint_text (table, col, 0, col, 1, TAT_TITLE | TAB_CENTER,
127 tab_joint_text (table, col, 0, col, 1, TAT_TITLE | TAB_CENTER,
128 _("Std. Deviation"));
130 tab_joint_text (table, col, 0, col, 1, TAT_TITLE | TAB_CENTER,
133 tab_joint_text (table, col, 0, col, 1, TAT_TITLE | TAB_CENTER,
140 tab_joint_text (table, col, 0, col + 2, 0, TAT_TITLE | TAB_CENTER,
142 tab_hline (table, TAL_1, col, col + 2, 1);
144 tab_text (table, col, 1, TAT_TITLE | TAB_CENTER,
147 tab_text (table, col, 1, TAT_TITLE | TAB_CENTER,
150 tab_text (table, col, 1, TAT_TITLE | TAB_CENTER,
155 for ( v = 0 ; v < n_vars ; ++v )
157 tab_text (table, 0, 2 + v, TAT_NONE, var_to_string (vv[v]));
159 tab_float (table, 1, 2 + v, TAT_NONE, desc[v].n, 8, 0);
160 tab_float (table, 2, 2 + v, TAT_NONE, desc[v].mean, 8, 3);
161 tab_float (table, 3, 2 + v, TAT_NONE, desc[v].std_dev, 8, 3);
162 tab_float (table, 4, 2 + v, TAT_NONE, desc[v].min, 8, 3);
163 tab_float (table, 5, 2 + v, TAT_NONE, desc[v].max, 8, 3);