1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 2006, 2009, 2010, 2011 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/>. */
19 #include "language/stats/npar-summary.h"
23 #include "data/case.h"
24 #include "data/casereader.h"
25 #include "data/dictionary.h"
26 #include "data/format.h"
27 #include "data/variable.h"
28 #include "math/moments.h"
29 #include "output/tab.h"
31 #include "gl/minmax.h"
34 #define _(msgid) gettext (msgid)
38 npar_summary_calc_descriptives (struct descriptives *desc,
39 struct casereader *input,
40 const struct dictionary *dict,
41 const struct variable *const *vv,
46 for (i = 0 ; i < n_vars; ++i)
48 double minimum = DBL_MAX;
49 double maximum = -DBL_MAX;
51 struct moments1 *moments = moments1_create (MOMENT_VARIANCE);
53 const struct variable *v = vv[i];
54 struct casereader *pass;
56 pass = casereader_clone (input);
57 pass = casereader_create_filter_missing (pass,
60 pass = casereader_create_filter_weight (pass, dict, NULL, NULL);
61 while ((c = casereader_read (pass)) != NULL)
63 double val = case_num (c, v);
64 double w = dict_get_case_weight (dict, c, NULL);
65 minimum = MIN (minimum, val);
66 maximum = MAX (maximum, val);
67 moments1_add (moments, val, w);
70 casereader_destroy (pass);
72 moments1_calculate (moments,
78 desc[i].std_dev = sqrt (var);
80 moments1_destroy (moments);
82 desc[i].min = minimum;
83 desc[i].max = maximum;
86 casereader_destroy (input);
92 do_summary_box (const struct descriptives *desc,
93 const struct variable *const *vv,
97 bool quartiles = false;
101 struct tab_table *table ;
103 if ( desc ) columns += 5;
104 if ( quartiles ) columns += 3;
106 table = tab_create (columns, 2 + n_vars);
109 tab_title (table, _("Descriptive Statistics"));
111 tab_headers (table, 1, 0, 1, 0);
113 tab_box (table, TAL_1, TAL_1, -1, TAL_1,
114 0, 0, tab_nc (table) - 1, tab_nr(table) - 1 );
116 tab_hline (table, TAL_2, 0, tab_nc (table) -1, 2);
117 tab_vline (table, TAL_2, 1, 0, tab_nr (table) - 1);
122 tab_joint_text (table, col, 0, col, 1, TAT_TITLE | TAB_CENTER,
125 tab_joint_text (table, col, 0, col, 1, TAT_TITLE | TAB_CENTER,
128 tab_joint_text (table, col, 0, col, 1, TAT_TITLE | TAB_CENTER,
129 _("Std. Deviation"));
131 tab_joint_text (table, col, 0, col, 1, TAT_TITLE | TAB_CENTER,
134 tab_joint_text (table, col, 0, col, 1, TAT_TITLE | TAB_CENTER,
141 tab_joint_text (table, col, 0, col + 2, 0, TAT_TITLE | TAB_CENTER,
143 tab_hline (table, TAL_1, col, col + 2, 1);
145 tab_text (table, col, 1, TAT_TITLE | TAB_CENTER,
148 tab_text (table, col, 1, TAT_TITLE | TAB_CENTER,
151 tab_text (table, col, 1, TAT_TITLE | TAB_CENTER,
157 for ( v = 0 ; v < n_vars ; ++v )
159 const struct variable *var = vv[v];
160 const struct fmt_spec *fmt = var_get_print_format (var);
162 tab_text (table, 0, 2 + v, 0, var_to_string (var));
167 tab_double (table, col++, 2 + v, 0, desc[v].n, fmt, RC_OTHER);
168 tab_double (table, col++, 2 + v, 0, desc[v].mean, fmt, RC_OTHER);
169 tab_double (table, col++, 2 + v, 0, desc[v].std_dev, fmt, RC_OTHER);
170 tab_double (table, col++, 2 + v, 0, desc[v].min, fmt, RC_OTHER);
171 tab_double (table, col++, 2 + v, 0, desc[v].max, fmt, RC_OTHER);