-/* PSPP - computes sample statistics.
+/* PSPP - a program for statistical analysis.
Copyright (C) 2005 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/>. */
#include <config.h>
#include "missing-values.h"
string variables may have missing values, WIDTH may be any
valid variable width. */
void
-mv_init (struct missing_values *mv, int width)
+mv_init (struct missing_values *mv, int width)
{
assert (width >= 0 && width <= MAX_STRING);
mv->type = MVT_NONE;
}
/* Removes any missing values from MV. */
-void
+void
mv_clear (struct missing_values *mv)
{
mv->type = MVT_NONE;
/* Copies SRC to MV. */
void
-mv_copy (struct missing_values *mv, const struct missing_values *src)
+mv_copy (struct missing_values *mv, const struct missing_values *src)
{
assert(src);
/* Returns true if MV is an empty set of missing values. */
bool
-mv_is_empty (const struct missing_values *mv)
+mv_is_empty (const struct missing_values *mv)
{
return mv->type == MVT_NONE;
}
{
if (mv->width > MAX_SHORT_STRING)
return false;
- switch (mv->type)
+ switch (mv->type)
{
case MVT_NONE:
case MVT_1:
missing values. (Long string variables never accept missing
values.) */
bool
-mv_add_str (struct missing_values *mv, const char s[])
+mv_add_str (struct missing_values *mv, const char s[])
{
assert (mv->width > 0);
return mv_add_value (mv, (union value *) s);
Returns true if successful, false if MV has no more room for
missing values. */
bool
-mv_add_num (struct missing_values *mv, double d)
+mv_add_num (struct missing_values *mv, double d)
{
assert (mv->width == 0);
return mv_add_value (mv, (union value *) &d);
missing values MV. Returns true if successful, false if MV
has no room for a range, or if LOW > HIGH. */
bool
-mv_add_num_range (struct missing_values *mv, double low, double high)
+mv_add_num_range (struct missing_values *mv, double low, double high)
{
assert (mv->width == 0);
if (low > high)
return false;
- switch (mv->type)
+ switch (mv->type)
{
case MVT_NONE:
case MVT_1:
bool
mv_has_value (const struct missing_values *mv)
{
- switch (mv->type)
+ switch (mv->type)
{
case MVT_1:
case MVT_2:
case MVT_3:
case MVT_RANGE_1:
return true;
-
+
case MVT_NONE:
case MVT_RANGE:
return false;
MV must contain an individual value (as determined by
mv_has_value()). */
void
-mv_pop_value (struct missing_values *mv, union value *v)
+mv_pop_value (struct missing_values *mv, union value *v)
{
assert (mv_has_value (mv));
mv->type--;
/* Stores a value in *V.
MV must contain an individual value (as determined by
- mv_has_value()).
+ mv_has_value()).
IDX is the zero based index of the value to get
*/
void
-mv_peek_value (const struct missing_values *mv, union value *v, int idx)
+mv_peek_value (const struct missing_values *mv, union value *v, int idx)
{
assert (idx >= 0 ) ;
assert (idx < 3);
*v = mv->values[idx];
}
-void
+void
mv_replace_value (struct missing_values *mv, const union value *v, int idx)
{
assert (idx >= 0) ;
}
-
-int
+/* Returns the number of individual (not part of a range) missing
+ values in MV. */
+int
mv_n_values (const struct missing_values *mv)
{
- assert(mv_has_value(mv));
return mv->type & 3;
}
/* Returns true if MV contains a numeric range,
false if MV is empty (or contains only individual values). */
bool
-mv_has_range (const struct missing_values *mv)
+mv_has_range (const struct missing_values *mv)
{
- switch (mv->type)
+ switch (mv->type)
{
case MVT_RANGE:
case MVT_RANGE_1:
return true;
-
+
case MVT_NONE:
case MVT_1:
case MVT_2:
*HIGH. MV must contain a individual range (as determined by
mv_has_range()). */
void
-mv_pop_range (struct missing_values *mv, double *low, double *high)
+mv_pop_range (struct missing_values *mv, double *low, double *high)
{
assert (mv_has_range (mv));
*low = mv->values[1].f;
*HIGH. MV must contain a individual range (as determined by
mv_has_range()). */
void
-mv_peek_range (const struct missing_values *mv, double *low, double *high)
+mv_peek_range (const struct missing_values *mv, double *low, double *high)
{
assert (mv_has_range (mv));
*low = mv->values[1].f;
is set to TYPE (in struct missing_values),
false otherwise. */
static bool
-using_element (unsigned type, int idx)
+using_element (unsigned type, int idx)
{
assert (idx >= 0 && idx < 3);
-
- switch (type)
+
+ switch (type)
{
case MVT_NONE:
return false;
NEW_WIDTH (inclusive) and OLD_WIDTH (exclusive),
false otherwise. */
static bool
-can_resize_string (const char *s, int old_width, int new_width)
+can_resize_string (const char *s, int old_width, int new_width)
{
int i;
/* Resizes MV to the given WIDTH. WIDTH must fit the constraints
explained for mv_is_resizable(). */
void
-mv_resize (struct missing_values *mv, int width)
+mv_resize (struct missing_values *mv, int width)
{
assert (mv_is_resizable (mv, width));
- if (width > mv->width && mv->type != MVT_NONE)
+ if (width > mv->width && mv->type != MVT_NONE)
{
int i;
-
+
for (i = 0; i < 3; i++)
memset (mv->values[i].s + mv->width, ' ', width - mv->width);
}
{
const union value *v = mv->values;
assert (mv->width == 0);
- switch (mv->type)
+ switch (mv->type)
{
case MVT_NONE:
return false;
}
/* Returns true if S[] is a missing value in MV, false otherwise.
- MV must be a set of string missing values.
+ MV must be a set of string missing values.
S[] must contain exactly as many characters as MV's width. */
static bool
is_str_user_missing (const struct missing_values *mv,
{
const union value *v = mv->values;
assert (mv->width > 0);
- switch (mv->type)
+ switch (mv->type)
{
case MVT_NONE:
return false;
/* Returns true if S[] is a missing value in the given CLASS in
MV, false otherwise.
- MV must be a set of string missing values.
+ MV must be a set of string missing values.
S[] must contain exactly as many characters as MV's width. */
bool
mv_is_str_missing (const struct missing_values *mv, const char s[],
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