-/* PSPP - computes sample statistics.
- Copyright (C) 1997-9, 2000 Free Software Foundation, Inc.
+/* PSPP - a program for statistical analysis.
+ Copyright (C) 1997-9, 2000, 2007 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 the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
+ 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
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU 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., 51 Franklin Street, Fifth Floor, Boston, MA
- 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/*
TODO:
#include <gsl/gsl_histogram.h>
#include <data/case.h>
+#include <data/casegrouper.h>
+#include <data/casereader.h>
#include <data/dictionary.h>
#include <data/format.h>
#include <data/procedure.h>
#include <language/command.h>
#include <language/dictionary/split-file.h>
#include <language/lexer/lexer.h>
-#include <libpspp/alloc.h>
#include <libpspp/array.h>
#include <libpspp/bit-vector.h>
#include <libpspp/compiler.h>
#include <libpspp/hash.h>
-#include <libpspp/magic.h>
-#include <libpspp/message.h>
#include <libpspp/message.h>
#include <libpspp/misc.h>
#include <libpspp/pool.h>
#include "freq.h"
#include "minmax.h"
+#include "xalloc.h"
#include "gettext.h"
#define _(msgid) gettext (msgid)
FREQUENCIES (frq_):
*+variables=custom;
+format=cond:condense/onepage(*n:onepage_limit,"%s>=0")/!standard,
- table:limit(n:limit,"%s>0")/notable/!table,
+ table:limit(n:limit,"%s>0")/notable/!table,
labels:!labels/nolabels,
sort:!avalue/dvalue/afreq/dfreq,
spaces:!single/double,
double value; /* the %ile's value */
double x1; /* The datum value <= the percentile */
double x2; /* The datum value >= the percentile */
- int flag;
+ int flag;
int flag2; /* Set to 1 if this percentile value has been found */
};
static struct percentile *percentiles;
static int n_percentiles;
-static int implicit_50th ;
-
/* Groups of statistics. */
#define BI BIT_INDEX
#define frq_default \
static size_t n_variables;
static const struct variable **v_variables;
-/* Arenas used to store semi-permanent storage. */
-static struct pool *int_pool; /* Integer mode. */
-static struct pool *gen_pool; /* General mode. */
+/* Pools. */
+static struct pool *data_pool; /* For per-SPLIT FILE group data. */
+static struct pool *syntax_pool; /* For syntax-related data. */
/* Frequency tables. */
-/* Types of frequency tables. */
-enum
- {
- FRQM_GENERAL,
- FRQM_INTEGER
- };
-
/* Entire frequency table. */
struct freq_tab
{
- int mode; /* FRQM_GENERAL or FRQM_INTEGER. */
-
- /* General mode. */
struct hsh_table *data; /* Undifferentiated data. */
-
- /* Integer mode. */
- double *vector; /* Frequencies proper. */
- int min, max; /* The boundaries of the table. */
- double out_of_range; /* Sum of weights of out-of-range values. */
- double sysmis; /* Sum of weights of SYSMIS values. */
-
- /* All modes. */
struct freq *valid; /* Valid freqs. */
int n_valid; /* Number of total freqs. */
static void calc_stats (const struct variable *v, double d[frq_n_stats]);
-static void precalc (const struct ccase *, void *, const struct dataset *);
-static bool calc (const struct ccase *, void *, const struct dataset *);
-static bool postcalc (void *, const struct dataset *);
+static void precalc (struct casereader *, struct dataset *);
+static void calc (const struct ccase *, const struct dataset *);
+static void postcalc (const struct dataset *);
static void postprocess_freq_tab (const struct variable *);
-static void dump_full (const struct variable *);
-static void dump_condensed (const struct variable *);
-static void dump_statistics (const struct variable *, int show_varname);
+static void dump_full ( const struct variable *, const struct variable *);
+static void dump_condensed (const struct variable *, const struct variable *);
+static void dump_statistics (const struct variable *, bool show_varname, const struct variable *);
static void cleanup_freq_tab (const struct variable *);
static hsh_compare_func compare_value_numeric_a, compare_value_alpha_a;
static void do_piechart(const struct variable *var,
const struct freq_tab *frq_tab);
-gsl_histogram *
+gsl_histogram *
freq_tab_to_hist(const struct freq_tab *ft, const struct variable *var);
{
int result;
- int_pool = pool_create ();
+ syntax_pool = pool_create ();
result = internal_cmd_frequencies (lexer, ds);
- pool_destroy (int_pool);
- int_pool=0;
- pool_destroy (gen_pool);
- gen_pool=0;
+ pool_destroy (syntax_pool);
+ syntax_pool=0;
+ pool_destroy (data_pool);
+ data_pool=0;
free (v_variables);
v_variables=0;
return result;
static int
internal_cmd_frequencies (struct lexer *lexer, struct dataset *ds)
{
- int i;
+ struct casegrouper *grouper;
+ struct casereader *input, *group;
bool ok;
+ int i;
n_percentiles = 0;
percentiles = NULL;
if (!parse_frequencies (lexer, ds, &cmd, NULL))
return CMD_FAILURE;
- if (cmd.onepage_limit == NOT_LONG)
+ if (cmd.onepage_limit == LONG_MIN)
cmd.onepage_limit = 50;
/* Figure out statistics to calculate. */
if (cmd.a_statistics[FRQ_ST_ALL])
stats |= frq_all;
if (cmd.sort != FRQ_AVALUE && cmd.sort != FRQ_DVALUE)
- stats &= ~frq_median;
+ stats &= ~BIT_INDEX (frq_median);
for (i = 0; i < frq_n_stats; i++)
if (cmd.a_statistics[st_name[i].st_indx])
stats |= BIT_INDEX (i);
if (stats & frq_kurt)
- stats |= frq_sekurt;
+ stats |= BIT_INDEX (frq_sekurt);
if (stats & frq_skew)
- stats |= frq_seskew;
+ stats |= BIT_INDEX (frq_seskew);
/* Calculate n_stats. */
n_stats = 0;
cmd.sort = FRQ_AVALUE;
/* Work out what percentiles need to be calculated */
- if ( cmd.sbc_percentiles )
+ if ( cmd.sbc_percentiles )
{
- for ( i = 0 ; i < MAXLISTS ; ++i )
+ for ( i = 0 ; i < MAXLISTS ; ++i )
{
int pl;
subc_list_double *ptl_list = &cmd.dl_percentiles[i];
add_percentile (subc_list_double_at(ptl_list, pl) / 100.0 );
}
}
- if ( cmd.sbc_ntiles )
+ if ( cmd.sbc_ntiles )
{
- for ( i = 0 ; i < cmd.sbc_ntiles ; ++i )
+ for ( i = 0 ; i < cmd.sbc_ntiles ; ++i )
{
int j;
- for (j = 0; j <= cmd.n_ntiles[i]; ++j )
+ for (j = 0; j <= cmd.n_ntiles[i]; ++j )
add_percentile (j / (double) cmd.n_ntiles[i]);
}
}
-
+ if (stats & BIT_INDEX (frq_median))
+ {
+ /* Treat the median as the 50% percentile.
+ We output it in the percentiles table as "50 (Median)." */
+ add_percentile (0.5);
+ stats &= ~BIT_INDEX (frq_median);
+ n_stats--;
+ }
/* Do it! */
- ok = procedure_with_splits (ds, precalc, calc, postcalc, NULL);
+ input = casereader_create_filter_weight (proc_open (ds), dataset_dict (ds),
+ NULL, NULL);
+ grouper = casegrouper_create_splits (input, dataset_dict (ds));
+ for (; casegrouper_get_next_group (grouper, &group);
+ casereader_destroy (group))
+ {
+ struct ccase c;
+
+ precalc (group, ds);
+ for (; casereader_read (group, &c); case_destroy (&c))
+ calc (&c, ds);
+ postcalc (ds);
+ }
+ ok = casegrouper_destroy (grouper);
+ ok = proc_commit (ds) && ok;
free_frequencies(&cmd);
static void
determine_charts (void)
{
- int count = (!!cmd.sbc_histogram) + (!!cmd.sbc_barchart) +
+ int count = (!!cmd.sbc_histogram) + (!!cmd.sbc_barchart) +
(!!cmd.sbc_hbar) + (!!cmd.sbc_piechart);
if (!count)
}
/* Add data from case C to the frequency table. */
-static bool
-calc (const struct ccase *c, void *aux UNUSED, const struct dataset *ds)
+static void
+calc (const struct ccase *c, const struct dataset *ds)
{
- double weight;
+ double weight = dict_get_case_weight (dataset_dict (ds), c, NULL);
size_t i;
- bool bad_warn = true;
-
- weight = dict_get_case_weight (dataset_dict (ds), c, &bad_warn);
for (i = 0; i < n_variables; i++)
{
struct var_freqs *vf = get_var_freqs (v);
struct freq_tab *ft = &vf->tab;
- switch (ft->mode)
- {
- case FRQM_GENERAL:
- {
- /* General mode. */
- struct freq target;
- struct freq **fpp;
-
- target.value = (union value *) val;
- fpp = (struct freq **) hsh_probe (ft->data, &target);
-
- if (*fpp != NULL)
- (*fpp)->count += weight;
- else
- {
- struct freq *fp = pool_alloc (gen_pool, sizeof *fp);
- fp->count = weight;
- fp->value = pool_clone (gen_pool,
- val, MAX (MAX_SHORT_STRING, vf->width));
- *fpp = fp;
- }
- }
- break;
- case FRQM_INTEGER:
- /* Integer mode. */
- if (val->f == SYSMIS)
- ft->sysmis += weight;
- else if (val->f > INT_MIN+1 && val->f < INT_MAX-1)
- {
- int i = val->f;
- if (i >= ft->min && i <= ft->max)
- ft->vector[i - ft->min] += weight;
- }
- else
- ft->out_of_range += weight;
- break;
- default:
- NOT_REACHED ();
- }
+ struct freq target;
+ struct freq **fpp;
+
+ target.value = (union value *) val;
+ fpp = (struct freq **) hsh_probe (ft->data, &target);
+
+ if (*fpp != NULL)
+ (*fpp)->count += weight;
+ else
+ {
+ struct freq *fp = pool_alloc (data_pool, sizeof *fp);
+ fp->count = weight;
+ fp->value = pool_clone (data_pool,
+ val,
+ MAX (MAX_SHORT_STRING, vf->width));
+ *fpp = fp;
+ }
}
- return true;
}
/* Prepares each variable that is the target of FREQUENCIES by setting
up its hash table. */
static void
-precalc (const struct ccase *first, void *aux UNUSED, const struct dataset *ds)
+precalc (struct casereader *input, struct dataset *ds)
{
+ struct ccase c;
size_t i;
- output_split_file_values (ds, first);
+ if (casereader_peek (input, 0, &c))
+ {
+ output_split_file_values (ds, &c);
+ case_destroy (&c);
+ }
+
+ pool_destroy (data_pool);
+ data_pool = pool_create ();
- pool_destroy (gen_pool);
- gen_pool = pool_create ();
-
for (i = 0; i < n_variables; i++)
{
const struct variable *v = v_variables[i];
struct freq_tab *ft = &get_var_freqs (v)->tab;
- if (ft->mode == FRQM_GENERAL)
- {
- ft->data = hsh_create (16, compare_freq, hash_freq, NULL, v);
- }
- else
- {
- int j;
-
- for (j = (ft->max - ft->min); j >= 0; j--)
- ft->vector[j] = 0.0;
- ft->out_of_range = 0.0;
- ft->sysmis = 0.0;
- }
+ ft->data = hsh_create (16, compare_freq, hash_freq, NULL, v);
}
}
/* Finishes up with the variables after frequencies have been
calculated. Displays statistics, percentiles, ... */
-static bool
-postcalc (void *aux UNUSED, const struct dataset *ds UNUSED)
+static void
+postcalc (const struct dataset *ds)
{
+ const struct dictionary *dict = dataset_dict (ds);
+ const struct variable *wv = dict_get_weight (dict);
size_t i;
for (i = 0; i < n_variables; i++)
switch (cmd.cond)
{
case FRQ_CONDENSE:
- dump_condensed (v);
+ dump_condensed (v, wv);
break;
case FRQ_STANDARD:
- dump_full (v);
+ dump_full (v, wv);
break;
case FRQ_ONEPAGE:
if (n_categories > cmd.onepage_limit)
- dump_condensed (v);
+ dump_condensed (v, wv);
else
- dump_full (v);
+ dump_full (v, wv);
break;
default:
NOT_REACHED ();
/* Statistics. */
if (n_stats)
- dump_statistics (v, !dumped_freq_tab);
+ dump_statistics (v, !dumped_freq_tab, wv);
- if ( chart == GFT_HIST)
+ if ( chart == GFT_HIST)
{
double d[frq_n_stats];
struct normal_curve norm;
}
- if ( chart == GFT_PIE)
+ if ( chart == GFT_PIE)
{
do_piechart(v_variables[i], ft);
}
cleanup_freq_tab (v);
}
-
- return true;
}
/* Returns the comparison function that should be used for
- sorting a frequency table by FRQ_SORT using VAR_TYPE
- variables. */
+ sorting a frequency table by FRQ_SORT using VAL_TYPE
+ values. */
static hsh_compare_func *
-get_freq_comparator (int frq_sort, enum var_type var_type)
+get_freq_comparator (int frq_sort, enum val_type val_type)
{
- bool is_numeric = var_type == VAR_NUMERIC;
+ bool is_numeric = val_type == VAL_NUMERIC;
switch (frq_sort)
{
case FRQ_AVALUE:
/* Returns true iff the value in struct freq F is non-missing
for variable V. */
static bool
-not_missing (const void *f_, const void *v_)
+not_missing (const void *f_, const void *v_)
{
const struct freq *f = f_;
const struct variable *v = v_;
size_t i;
ft = &get_var_freqs (v)->tab;
- assert (ft->mode == FRQM_GENERAL);
compare = get_freq_comparator (cmd.sort, var_get_type (v));
/* Extract data from hash table. */
/* Copy dereferenced data into freqs. */
freqs = xnmalloc (count, sizeof *freqs);
- for (i = 0; i < count; i++)
+ for (i = 0; i < count; i++)
{
struct freq *f = data[i];
- freqs[i] = *f;
+ freqs[i] = *f;
}
/* Put data into ft. */
/* Summary statistics. */
ft->valid_cases = 0.0;
- for(i = 0 ; i < ft->n_valid ; ++i )
+ for(i = 0 ; i < ft->n_valid ; ++i )
{
f = &ft->valid[i];
ft->valid_cases += f->count;
}
- ft->total_cases = ft->valid_cases ;
- for(i = 0 ; i < ft->n_missing ; ++i )
+ ft->total_cases = ft->valid_cases ;
+ for(i = 0 ; i < ft->n_missing ; ++i )
{
f = &ft->missing[i];
ft->total_cases += f->count;
cleanup_freq_tab (const struct variable *v)
{
struct freq_tab *ft = &get_var_freqs (v)->tab;
- assert (ft->mode == FRQM_GENERAL);
free (ft->valid);
hsh_destroy (ft->data);
}
static int
frq_custom_variables (struct lexer *lexer, struct dataset *ds, struct cmd_frequencies *cmd UNUSED, void *aux UNUSED)
{
- int mode;
- int min = 0, max = 0;
-
size_t old_n_variables = n_variables;
size_t i;
PV_APPEND | PV_NO_SCRATCH))
return 0;
- if (!lex_match (lexer, '('))
- mode = FRQM_GENERAL;
- else
- {
- mode = FRQM_INTEGER;
- if (!lex_force_int (lexer))
- return 0;
- min = lex_integer (lexer);
- lex_get (lexer);
- if (!lex_force_match (lexer, ','))
- return 0;
- if (!lex_force_int (lexer))
- return 0;
- max = lex_integer (lexer);
- lex_get (lexer);
- if (!lex_force_match (lexer, ')'))
- return 0;
- if (max < min)
- {
- msg (SE, _("Upper limit of integer mode value range must be "
- "greater than lower limit."));
- return 0;
- }
- }
-
for (i = old_n_variables; i < n_variables; i++)
{
const struct variable *v = v_variables[i];
"subcommand."), var_get_name (v));
return 0;
}
- if (mode == FRQM_INTEGER && !var_is_numeric (v))
- {
- msg (SE, _("Integer mode specified, but %s is not a numeric "
- "variable."), var_get_name (v));
- return 0;
- }
-
vf = var_attach_aux (v, xmalloc (sizeof *vf), var_dtor_free);
- vf->tab.mode = mode;
vf->tab.valid = vf->tab.missing = NULL;
- if (mode == FRQM_INTEGER)
- {
- vf->tab.min = min;
- vf->tab.max = max;
- vf->tab.vector = pool_nalloc (int_pool,
- max - min + 1, sizeof *vf->tab.vector);
- }
- else
- vf->tab.vector = NULL;
vf->n_groups = 0;
vf->groups = NULL;
vf->width = var_get_width (v);
vf->print = *var_get_print_format (v);
- if (vf->width > MAX_SHORT_STRING && get_algorithm () == COMPATIBLE)
+ if (vf->width > MAX_SHORT_STRING && settings_get_algorithm () == COMPATIBLE)
{
enum fmt_type type = var_get_print_format (v)->type;
vf->width = MAX_SHORT_STRING;
if (nl >= ml)
{
ml += 16;
- dl = pool_nrealloc (int_pool, dl, ml, sizeof *dl);
+ dl = pool_nrealloc (syntax_pool, dl, ml, sizeof *dl);
}
dl[nl++] = lex_tokval (lexer);
lex_get (lexer);
return 0;
}
}
- else
+ else
{
nl = 0;
dl = NULL;
if (var_get_aux (v[i]) == NULL)
msg (SE, _("Variables %s specified on GROUPED but not on "
"VARIABLES."), var_get_name (v[i]));
- else
+ else
{
struct var_freqs *vf = get_var_freqs (v[i]);
-
+
if (vf->groups != NULL)
msg (SE, _("Variables %s specified multiple times on GROUPED "
"subcommand."), var_get_name (v[i]));
for (i = 0; i < n_percentiles; i++)
{
/* Do nothing if it's already in the list */
- if ( fabs(x - percentiles[i].p) < DBL_EPSILON )
+ if ( fabs(x - percentiles[i].p) < DBL_EPSILON )
return;
if (x < percentiles[i].p)
if (i >= n_percentiles || x != percentiles[i].p)
{
- percentiles = pool_nrealloc (int_pool, percentiles,
+ percentiles = pool_nrealloc (syntax_pool, percentiles,
n_percentiles + 1, sizeof *percentiles);
-
- if (i < n_percentiles)
- memmove (&percentiles[i + 1], &percentiles[i],
- (n_percentiles - i) * sizeof (struct percentile) );
-
+ insert_element (percentiles, n_percentiles, sizeof *percentiles, i);
percentiles[i].p = x;
n_percentiles++;
}
/* Displays a full frequency table for variable V. */
static void
-dump_full (const struct variable *v)
+dump_full (const struct variable *v, const struct variable *wv)
{
+ const struct fmt_spec *wfmt = wv ? var_get_print_format (wv) : &F_8_0;
int n_categories;
struct var_freqs *vf;
struct freq_tab *ft;
}
tab_value (t, 0 + lab, r, TAB_NONE, f->value, &vf->print);
- tab_float (t, 1 + lab, r, TAB_NONE, f->count, 8, 0);
- tab_float (t, 2 + lab, r, TAB_NONE, percent, 5, 1);
- tab_float (t, 3 + lab, r, TAB_NONE, valid_percent, 5, 1);
- tab_float (t, 4 + lab, r, TAB_NONE, cum_total, 5, 1);
+ tab_double (t, 1 + lab, r, TAB_NONE, f->count, wfmt);
+ tab_double (t, 2 + lab, r, TAB_NONE, percent, NULL);
+ tab_double (t, 3 + lab, r, TAB_NONE, valid_percent, NULL);
+ tab_double (t, 4 + lab, r, TAB_NONE, cum_total, NULL);
r++;
}
for (; f < &ft->valid[n_categories]; f++)
}
tab_value (t, 0 + lab, r, TAB_NONE, f->value, &vf->print);
- tab_float (t, 1 + lab, r, TAB_NONE, f->count, 8, 0);
- tab_float (t, 2 + lab, r, TAB_NONE,
- f->count / ft->total_cases * 100.0, 5, 1);
+ tab_double (t, 1 + lab, r, TAB_NONE, f->count, wfmt);
+ tab_double (t, 2 + lab, r, TAB_NONE,
+ f->count / ft->total_cases * 100.0, NULL);
tab_text (t, 3 + lab, r, TAB_NONE, _("Missing"));
r++;
}
tab_hline (t, TAL_2, 0, 4 + lab, r);
tab_joint_text (t, 0, r, 0 + lab, r, TAB_RIGHT | TAT_TITLE, _("Total"));
tab_vline (t, TAL_0, 1, r, r);
- tab_float (t, 1 + lab, r, TAB_NONE, cum_freq, 8, 0);
- tab_float (t, 2 + lab, r, TAB_NONE, 100.0, 5, 1);
- tab_float (t, 3 + lab, r, TAB_NONE, 100.0, 5, 1);
+ tab_double (t, 1 + lab, r, TAB_NONE, cum_freq, wfmt);
+ tab_fixed (t, 2 + lab, r, TAB_NONE, 100.0, 5, 1);
+ tab_fixed (t, 3 + lab, r, TAB_NONE, 100.0, 5, 1);
tab_title (t, "%s", var_to_string (v));
tab_submit (t);
/* Display condensed frequency table for variable V. */
static void
-dump_condensed (const struct variable *v)
+dump_condensed (const struct variable *v, const struct variable *wv)
{
+ const struct fmt_spec *wfmt = wv ? var_get_print_format (wv) : &F_8_0;
int n_categories;
struct var_freqs *vf;
struct freq_tab *ft;
cum_total += f->count / ft->valid_cases * 100.0;
tab_value (t, 0, r, TAB_NONE, f->value, &vf->print);
- tab_float (t, 1, r, TAB_NONE, f->count, 8, 0);
- tab_float (t, 2, r, TAB_NONE, percent, 3, 0);
- tab_float (t, 3, r, TAB_NONE, cum_total, 3, 0);
+ tab_double (t, 1, r, TAB_NONE, f->count, wfmt);
+ tab_double (t, 2, r, TAB_NONE, percent, NULL);
+ tab_double (t, 3, r, TAB_NONE, cum_total, NULL);
r++;
}
for (; f < &ft->valid[n_categories]; f++)
{
tab_value (t, 0, r, TAB_NONE, f->value, &vf->print);
- tab_float (t, 1, r, TAB_NONE, f->count, 8, 0);
- tab_float (t, 2, r, TAB_NONE,
- f->count / ft->total_cases * 100.0, 3, 0);
+ tab_double (t, 1, r, TAB_NONE, f->count, wfmt);
+ tab_double (t, 2, r, TAB_NONE,
+ f->count / ft->total_cases * 100.0, NULL);
r++;
}
struct freq_tab *ft = &get_var_freqs (v)->tab;
double W = ft->valid_cases;
struct moments *m;
- struct freq *f=0;
+ struct freq *f=0;
int most_often;
double X_mode;
double rank;
int i = 0;
int idx;
- double *median_value;
/* Calculate percentiles. */
- /* If the 50th percentile was not explicitly requested then we must
- calculate it anyway --- it's the median */
- median_value = 0 ;
- for (i = 0; i < n_percentiles; i++)
- {
- if (percentiles[i].p == 0.5)
- {
- median_value = &percentiles[i].value;
- break;
- }
- }
-
- if ( 0 == median_value )
- {
- add_percentile (0.5);
- implicit_50th = 1;
- }
-
- for (i = 0; i < n_percentiles; i++)
+ for (i = 0; i < n_percentiles; i++)
{
percentiles[i].flag = 0;
percentiles[i].flag2 = 0;
for (idx = 0; idx < ft->n_valid; ++idx)
{
static double prev_value = SYSMIS;
- f = &ft->valid[idx];
+ f = &ft->valid[idx];
rank += f->count ;
- for (i = 0; i < n_percentiles; i++)
+ for (i = 0; i < n_percentiles; i++)
{
double tp;
- if ( percentiles[i].flag2 ) continue ;
+ if ( percentiles[i].flag2 ) continue ;
- if ( get_algorithm() != COMPATIBLE )
- tp =
+ if ( settings_get_algorithm () != COMPATIBLE )
+ tp =
(ft->valid_cases - 1) * percentiles[i].p;
else
- tp =
+ tp =
(ft->valid_cases + 1) * percentiles[i].p - 1;
- if ( percentiles[i].flag )
+ if ( percentiles[i].flag )
{
percentiles[i].x2 = f->value[0].f;
percentiles[i].x1 = prev_value;
continue;
}
- if (rank > tp )
+ if (rank > tp )
{
- if ( f->count > 1 && rank - (f->count - 1) > tp )
+ if ( f->count > 1 && rank - (f->count - 1) > tp )
{
percentiles[i].x2 = percentiles[i].x1 = f->value[0].f;
percentiles[i].flag2 = 1;
prev_value = f->value[0].f;
}
- for (i = 0; i < n_percentiles; i++)
+ for (i = 0; i < n_percentiles; i++)
{
/* Catches the case when p == 100% */
- if ( ! percentiles[i].flag2 )
+ if ( ! percentiles[i].flag2 )
percentiles[i].x1 = percentiles[i].x2 = f->value[0].f;
/*
*/
}
- for (i = 0; i < n_percentiles; i++)
+ for (i = 0; i < n_percentiles; i++)
{
struct freq_tab *ft = &get_var_freqs (v)->tab;
double s;
double dummy;
- if ( get_algorithm() != COMPATIBLE )
+ if ( settings_get_algorithm () != COMPATIBLE )
{
s = modf((ft->valid_cases - 1) * percentiles[i].p , &dummy);
}
s = modf((ft->valid_cases + 1) * percentiles[i].p -1, &dummy);
}
- percentiles[i].value = percentiles[i].x1 +
- ( percentiles[i].x2 - percentiles[i].x1) * s ;
-
- if ( percentiles[i].p == 0.50)
- median_value = &percentiles[i].value;
+ percentiles[i].value = percentiles[i].x1 +
+ ( percentiles[i].x2 - percentiles[i].x1) * s ;
}
X_mode = SYSMIS;
for (f = ft->valid; f < ft->missing; f++)
{
- if (most_often < f->count)
+ if (most_often < f->count)
{
most_often = f->count;
X_mode = f->value[0].f;
}
- else if (most_often == f->count)
+ else if (most_often == f->count)
{
/* A duplicate mode is undefined.
FIXME: keep track of *all* the modes. */
moments_calculate (m, NULL, &d[frq_mean], &d[frq_variance],
&d[frq_skew], &d[frq_kurt]);
moments_destroy (m);
-
+
/* Formulas below are taken from _SPSS Statistical Algorithms_. */
d[frq_min] = ft->valid[0].value[0].f;
d[frq_max] = ft->valid[ft->n_valid - 1].value[0].f;
d[frq_mode] = X_mode;
d[frq_range] = d[frq_max] - d[frq_min];
- d[frq_median] = *median_value;
d[frq_sum] = d[frq_mean] * W;
d[frq_stddev] = sqrt (d[frq_variance]);
d[frq_semean] = d[frq_stddev] / sqrt (W);
/* Displays a table of all the statistics requested for variable V. */
static void
-dump_statistics (const struct variable *v, int show_varname)
+dump_statistics (const struct variable *v, bool show_varname,
+ const struct variable *wv)
{
+ const struct fmt_spec *wfmt = wv ? var_get_print_format (wv) : &F_8_0;
struct freq_tab *ft;
double stat_value[frq_n_stats];
struct tab_table *t;
int i, r;
- int n_explicit_percentiles = n_percentiles;
-
- if ( implicit_50th && n_percentiles > 0 )
- --n_percentiles;
-
if (var_is_alpha (v))
return;
ft = &get_var_freqs (v)->tab;
}
calc_stats (v, stat_value);
- t = tab_create (3, n_stats + n_explicit_percentiles + 2, 0);
+ t = tab_create (3, n_stats + n_percentiles + 2, 0);
tab_dim (t, tab_natural_dimensions);
tab_box (t, TAL_1, TAL_1, -1, -1 , 0 , 0 , 2, tab_nr(t) - 1) ;
tab_vline (t, TAL_1 , 2, 0, tab_nr(t) - 1);
tab_vline (t, TAL_GAP , 1, 0, tab_nr(t) - 1 ) ;
-
+
r=2; /* N missing and N valid are always dumped */
for (i = 0; i < frq_n_stats; i++)
{
tab_text (t, 0, r, TAB_LEFT | TAT_TITLE,
gettext (st_name[i].s10));
- tab_float (t, 2, r, TAB_NONE, stat_value[i], 11, 3);
+ tab_double (t, 2, r, TAB_NONE, stat_value[i], NULL);
r++;
}
tab_text (t, 1, 0, TAB_LEFT | TAT_TITLE, _("Valid"));
tab_text (t, 1, 1, TAB_LEFT | TAT_TITLE, _("Missing"));
- tab_float(t, 2, 0, TAB_NONE, ft->valid_cases, 11, 0);
- tab_float(t, 2, 1, TAB_NONE, ft->total_cases - ft->valid_cases, 11, 0);
-
+ tab_double (t, 2, 0, TAB_NONE, ft->valid_cases, wfmt);
+ tab_double (t, 2, 1, TAB_NONE, ft->total_cases - ft->valid_cases, wfmt);
- for (i = 0; i < n_explicit_percentiles; i++, r++)
+ for (i = 0; i < n_percentiles; i++, r++)
{
- if ( i == 0 )
- {
+ if ( i == 0 )
+ {
tab_text (t, 0, r, TAB_LEFT | TAT_TITLE, _("Percentiles"));
}
- tab_float (t, 1, r, TAB_LEFT, percentiles[i].p * 100, 3, 0 );
- tab_float (t, 2, r, TAB_NONE, percentiles[i].value, 11, 3);
-
+ if (percentiles[i].p == 0.5)
+ tab_text (t, 1, r, TAB_LEFT, _("50 (Median)"));
+ else
+ tab_fixed (t, 1, r, TAB_LEFT, percentiles[i].p * 100, 3, 0);
+ tab_double (t, 2, r, TAB_NONE, percentiles[i].value,
+ var_get_print_format (v));
}
tab_columns (t, SOM_COL_DOWN, 1);
struct freq *frq;
/* Find out the extremes of the x value */
- for ( frq = hsh_first(fh, &hi); frq != 0; frq = hsh_next(fh, &hi) )
+ for ( frq = hsh_first(fh, &hi); frq != 0; frq = hsh_next(fh, &hi) )
{
if (var_is_value_missing(var, frq->value, MV_ANY))
continue;
hist = histogram_create(bins, x_min, x_max);
- for( i = 0 ; i < ft->n_valid ; ++i )
+ for( i = 0 ; i < ft->n_valid ; ++i )
{
frq = &ft->valid[i];
gsl_histogram_accumulate(hist, frq->value[0].f, frq->count);
static struct slice *
-freq_tab_to_slice_array(const struct freq_tab *frq_tab,
+freq_tab_to_slice_array(const struct freq_tab *frq_tab,
const struct variable *var,
int *n_slices);
The caller is responsible for freeing slices
*/
static struct slice *
-freq_tab_to_slice_array(const struct freq_tab *frq_tab,
+freq_tab_to_slice_array(const struct freq_tab *frq_tab,
const struct variable *var,
int *n_slices)
{
struct slice *slices;
*n_slices = frq_tab->n_valid;
-
+
slices = xnmalloc (*n_slices, sizeof *slices);
- for (i = 0 ; i < *n_slices ; ++i )
+ for (i = 0 ; i < *n_slices ; ++i )
{
const struct freq *frq = &frq_tab->valid[i];
- slices[i].label = var_get_value_name (var, frq->value);
+ ds_init_empty (&slices[i].label);
+ var_append_value_name (var, frq->value, &slices[i].label);
slices[i].magnetude = frq->count;
}
do_piechart(const struct variable *var, const struct freq_tab *frq_tab)
{
struct slice *slices;
- int n_slices;
+ int n_slices, i;
slices = freq_tab_to_slice_array(frq_tab, var, &n_slices);
piechart_plot(var_to_string(var), slices, n_slices);
+ for (i = 0 ; i < n_slices ; ++i )
+ {
+ ds_destroy (&slices[i].label);
+ }
+
free(slices);
}
-/*
+/*
Local Variables:
mode: c
End: