/* PSPP - a program for statistical analysis.
- Copyright (C) 2010 Free Software Foundation, Inc.
+ Copyright (C) 2010, 2011 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
#include <config.h>
-#include "mann-whitney.h"
+#include "language/stats/mann-whitney.h"
#include <gsl/gsl_cdf.h>
-#include <libpspp/cast.h>
-#include <libpspp/misc.h>
+#include "data/case.h"
+#include "data/casereader.h"
+#include "data/dataset.h"
+#include "data/dictionary.h"
+#include "data/format.h"
+#include "data/variable.h"
+#include "libpspp/cast.h"
+#include "libpspp/misc.h"
+#include "math/sort.h"
+#include "output/pivot-table.h"
-#include <math/sort.h>
-#include <data/case.h>
-#include <data/dictionary.h>
-#include <data/procedure.h>
-#include <data/casereader.h>
-#include <data/format.h>
-#include <data/variable.h>
+#include "gettext.h"
+#define N_(msgid) msgid
+#define _(msgid) gettext (msgid)
/* Calculates the adjustment necessary for tie compensation */
static void
double u; /* The Mann-Whitney U statistic */
double w; /* The Wilcoxon Rank Sum W statistic */
- double z;
+ double z;
};
-static void show_ranks_box (const struct n_sample_test *nst, const struct mw *mw);
-static void show_statistics_box (const struct n_sample_test *nst, const struct mw *mw, bool exact);
+static void show_ranks_box (const struct n_sample_test *, const struct mw *);
+static void show_statistics_box (const struct n_sample_test *,
+ const struct mw *);
+
+
+
+static bool
+belongs_to_test (const struct ccase *c, void *aux)
+{
+ const struct n_sample_test *nst = aux;
+
+ const union value *group = case_data (c, nst->indep_var);
+ const size_t group_var_width = var_get_width (nst->indep_var);
+
+ if ( value_equal (group, &nst->val1, group_var_width))
+ return true;
+
+ if ( value_equal (group, &nst->val2, group_var_width))
+ return true;
+
+ return false;
+}
+
void
struct casereader *input,
enum mv_class exclude,
const struct npar_test *test,
- bool exact,
- double timer)
+ bool exact UNUSED,
+ double timer UNUSED)
{
int i;
const struct dictionary *dict = dataset_dict (ds);
struct casereader *rr;
struct ccase *c;
const struct variable *var = nst->vars[i];
-
+
struct casereader *reader =
- sort_execute_1var (casereader_clone (input), var);
+ casereader_create_filter_func (casereader_clone (input),
+ belongs_to_test,
+ NULL,
+ CONST_CAST (struct n_sample_test *, nst),
+ NULL);
+
+ reader = casereader_create_filter_missing (reader, &var, 1,
+ exclude,
+ NULL, NULL);
+
+ reader = sort_execute_1var (reader, var);
rr = casereader_create_append_rank (reader, var,
dict_get_weight (dict),
for (; (c = casereader_read (rr)); case_unref (c))
{
- const union value *val = case_data (c, var);
const union value *group = case_data (c, nst->indep_var);
const size_t group_var_width = var_get_width (nst->indep_var);
const double rank = case_data_idx (c, rank_idx)->f;
- if ( var_is_value_missing (var, val, exclude))
- continue;
-
if ( value_equal (group, &nst->val1, group_var_width))
{
mw[i].rank_sum[0] += rank;
denominator -= tiebreaker;
denominator *= mwv->n[0] * mwv->n[1];
denominator /= n * (n - 1);
-
+
mwv->z /= sqrt (denominator);
}
}
casereader_destroy (input);
show_ranks_box (nst, mw);
- show_statistics_box (nst, mw, exact);
+ show_statistics_box (nst, mw);
free (mw);
}
-
\f
-
-#include <output/tab.h>
-#include "gettext.h"
-#define _(msgid) gettext (msgid)
-
static void
show_ranks_box (const struct n_sample_test *nst, const struct mw *mwv)
{
- int i;
- const int row_headers = 1;
- const int column_headers = 2;
- struct tab_table *table =
- tab_create (row_headers + 7, column_headers + nst->n_vars);
-
- struct string g1str, g2str;;
- ds_init_empty (&g1str);
- var_append_value_name (nst->indep_var, &nst->val1, &g1str);
-
- ds_init_empty (&g2str);
- var_append_value_name (nst->indep_var, &nst->val2, &g2str);
-
- tab_headers (table, row_headers, 0, column_headers, 0);
-
- tab_title (table, _("Ranks"));
-
- /* Vertical lines inside the box */
- tab_box (table, 1, 0, -1, TAL_1,
- row_headers, 0, tab_nc (table) - 1, tab_nr (table) - 1 );
-
- /* Box around the table */
- tab_box (table, TAL_2, TAL_2, -1, -1,
- 0, 0, tab_nc (table) - 1, tab_nr (table) - 1 );
-
- tab_hline (table, TAL_2, 0, tab_nc (table) -1, column_headers);
- tab_vline (table, TAL_2, row_headers, 0, tab_nr (table) - 1);
-
- tab_hline (table, TAL_1, row_headers, tab_nc (table) -1, 1);
-
- tab_text (table, 1, 1, TAT_TITLE | TAB_CENTER, ds_cstr (&g1str));
- tab_text (table, 2, 1, TAT_TITLE | TAB_CENTER, ds_cstr (&g2str));
- tab_text (table, 3, 1, TAT_TITLE | TAB_CENTER, _("Total"));
- tab_joint_text (table, 1, 0, 3, 0,
- TAT_TITLE | TAB_CENTER, _("N"));
- tab_vline (table, TAL_2, 4, 0, tab_nr (table) - 1);
-
- tab_text (table, 4, 1, TAT_TITLE | TAB_CENTER, ds_cstr (&g1str));
- tab_text (table, 5, 1, TAT_TITLE | TAB_CENTER, ds_cstr (&g2str));
- tab_joint_text (table, 4, 0, 5, 0,
- TAT_TITLE | TAB_CENTER, _("Mean Rank"));
- tab_vline (table, TAL_2, 6, 0, tab_nr (table) - 1);
-
- tab_text (table, 6, 1, TAT_TITLE | TAB_CENTER, ds_cstr (&g1str));
- tab_text (table, 7, 1, TAT_TITLE | TAB_CENTER, ds_cstr (&g2str));
- tab_joint_text (table, 6, 0, 7, 0,
- TAT_TITLE | TAB_CENTER, _("Sum of Ranks"));
-
- ds_destroy (&g1str);
- ds_destroy (&g2str);
-
- for (i = 0 ; i < nst->n_vars ; ++i)
+ struct pivot_table *table = pivot_table_create (N_("Ranks"));
+
+ pivot_dimension_create (table, PIVOT_AXIS_COLUMN, N_("Statistics"),
+ N_("N"), PIVOT_RC_COUNT,
+ N_("Mean Rank"), PIVOT_RC_OTHER,
+ N_("Sum of Ranks"), PIVOT_RC_OTHER);
+
+ struct pivot_dimension *indep = pivot_dimension_create__ (
+ table, PIVOT_AXIS_ROW, pivot_value_new_variable (nst->indep_var));
+ pivot_category_create_leaf (indep->root,
+ pivot_value_new_var_value (nst->indep_var,
+ &nst->val1));
+ pivot_category_create_leaf (indep->root,
+ pivot_value_new_var_value (nst->indep_var,
+ &nst->val2));
+ pivot_category_create_leaves (indep->root, N_("Total"));
+
+ struct pivot_dimension *dep = pivot_dimension_create (
+ table, PIVOT_AXIS_ROW, N_("Dependent Variables"));
+
+ for (size_t i = 0 ; i < nst->n_vars ; ++i)
{
const struct mw *mw = &mwv[i];
- tab_text (table, 0, column_headers + i, TAT_TITLE,
- var_to_string (nst->vars[i]));
-
- tab_double (table, 1, column_headers + i, 0,
- mw->n[0], 0);
-
- tab_double (table, 2, column_headers + i, 0,
- mw->n[1], 0);
-
- tab_double (table, 3, column_headers + i, 0,
- mw->n[1] + mw->n[0], 0);
-
- /* Mean Ranks */
- tab_double (table, 4, column_headers + i, 0,
- mw->rank_sum[0] / mw->n[0], 0);
-
- tab_double (table, 5, column_headers + i, 0,
- mw->rank_sum[1] / mw->n[1], 0);
- /* Sum of Ranks */
- tab_double (table, 6, column_headers + i, 0,
- mw->rank_sum[0], 0);
-
- tab_double (table, 7, column_headers + i, 0,
- mw->rank_sum[1], 0);
+ int dep_idx = pivot_category_create_leaf (
+ dep->root, pivot_value_new_variable (nst->vars[i]));
+
+ struct entry
+ {
+ int stat_idx;
+ int indep_idx;
+ double x;
+ }
+ entries[] = {
+ /* N. */
+ { 0, 0, mw->n[0] },
+ { 0, 1, mw->n[1] },
+ { 0, 2, mw->n[0] + mw->n[1] },
+
+ /* Mean Rank. */
+ { 1, 0, mw->rank_sum[0] / mw->n[0] },
+ { 1, 1, mw->rank_sum[1] / mw->n[1] },
+
+ /* Sum of Ranks. */
+ { 2, 0, mw->rank_sum[0] },
+ { 2, 1, mw->rank_sum[1] },
+ };
+
+ for (size_t j = 0; j < sizeof entries / sizeof *entries; j++)
+ {
+ const struct entry *e = &entries[j];
+ pivot_table_put3 (table, e->stat_idx, e->indep_idx, dep_idx,
+ pivot_value_new_number (e->x));
+ }
}
- tab_submit (table);
+ pivot_table_submit (table);
}
static void
-show_statistics_box (const struct n_sample_test *nst, const struct mw *mwv, bool exact)
+show_statistics_box (const struct n_sample_test *nst, const struct mw *mwv)
{
- int i;
- const int row_headers = 1;
- const int column_headers = 1;
- struct tab_table *table =
- tab_create (row_headers + (exact ? 6 : 4), column_headers + nst->n_vars);
-
- tab_headers (table, row_headers, 0, column_headers, 0);
-
- tab_title (table, _("Test Statistics"));
+ struct pivot_table *table = pivot_table_create (N_("Test Statistics"));
- /* Vertical lines inside the box */
- tab_box (table, 1, 0, -1, TAL_1,
- row_headers, 0, tab_nc (table) - 1, tab_nr (table) - 1 );
+ pivot_dimension_create (
+ table, PIVOT_AXIS_COLUMN, N_("Statistics"),
+ _("Mann-Whitney U"), PIVOT_RC_OTHER,
+ _("Wilcoxon W"), PIVOT_RC_OTHER,
+ _("Z"), PIVOT_RC_OTHER,
+ _("Asymp. Sig. (2-tailed)"), PIVOT_RC_SIGNIFICANCE);
- /* Box around the table */
- tab_box (table, TAL_2, TAL_2, -1, -1,
- 0, 0, tab_nc (table) - 1, tab_nr (table) - 1 );
+ struct pivot_dimension *variables = pivot_dimension_create (
+ table, PIVOT_AXIS_ROW, N_("Variables"));
- tab_hline (table, TAL_2, 0, tab_nc (table) -1, column_headers);
- tab_vline (table, TAL_2, row_headers, 0, tab_nr (table) - 1);
-
- tab_text (table, 1, 0, TAT_TITLE | TAB_CENTER, _("Mann-Whitney U"));
- tab_text (table, 2, 0, TAT_TITLE | TAB_CENTER, _("Wilcoxon W"));
- tab_text (table, 3, 0, TAT_TITLE | TAB_CENTER, _("Z"));
- tab_text (table, 4, 0, TAT_TITLE | TAB_CENTER, _("Asymp. Sig. (2-tailed)"));
-
- if (exact)
- {
- tab_text (table, 5, 0, TAT_TITLE | TAB_CENTER, _("Exact Sig. (2-tailed)"));
- tab_text (table, 6, 0, TAT_TITLE | TAB_CENTER, _("Point Probability"));
- }
-
- for (i = 0 ; i < nst->n_vars ; ++i)
+ for (size_t i = 0 ; i < nst->n_vars ; ++i)
{
const struct mw *mw = &mwv[i];
- tab_text (table, 0, column_headers + i, TAT_TITLE,
- var_to_string (nst->vars[i]));
-
- tab_double (table, 1, column_headers + i, 0,
- mw->u, 0);
-
- tab_double (table, 2, column_headers + i, 0,
- mw->w, 0);
-
- tab_double (table, 3, column_headers + i, 0,
- mw->z, 0);
-
- tab_double (table, 4, column_headers + i, 0,
- 2.0 * gsl_cdf_ugaussian_P (mw->z), 0);
+ int row = pivot_category_create_leaf (
+ variables->root, pivot_value_new_variable (nst->vars[i]));
+
+ double entries[] = {
+ mw->u,
+ mw->w,
+ mw->z,
+ 2.0 * gsl_cdf_ugaussian_P (mw->z),
+ };
+ for (size_t i = 0; i < sizeof entries / sizeof *entries; i++)
+ pivot_table_put2 (table, i, row, pivot_value_new_number (entries[i]));
}
- tab_submit (table);
+ pivot_table_submit (table);
}
projects / pspp / blobdiff