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/*
* multimultihistogram.c
*
* MultiHistogram with categories
*
* Copyright © 2013-2014 Deutsches Elektronen-Synchrotron DESY,
* a research centre of the Helmholtz Association.
*
* Authors:
* 2013-2014 Thomas White <taw@physics.org>
*
* 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.
*
* CrystFEL 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 CrystFEL. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <string.h>
#include <assert.h>
#include "multihistogram.h"
struct _multihistogram
{
double min;
double max;
int n_bins;
double bin_width;
int *bins[32];
};
void multihistogram_delete_all_values(MultiHistogram *hi)
{
int i;
for ( i=0; i<32; i++ ) {
if ( hi->bins[i] != NULL ) free(hi->bins[i]);
}
for ( i=0; i<32; i++ ) {
hi->bins[i] = calloc(hi->n_bins, sizeof(int));
}
}
MultiHistogram *multihistogram_new()
{
MultiHistogram *hi;
int i;
hi = malloc(sizeof(struct _multihistogram));
if ( hi == NULL ) return NULL;
hi->max = -INFINITY;
hi->min = INFINITY;
hi->n_bins = 50;
for ( i=0; i<32; i++ ) hi->bins[i] = NULL;
return hi;
}
void multihistogram_free(MultiHistogram *hi)
{
int i;
for ( i=0; i<32; i++ ) {
if ( hi->bins[i] != NULL ) free(hi->bins[i]);
}
free(hi);
}
void multihistogram_add_value(MultiHistogram *hi, double val, int cat)
{
int i, j;
j = (val - hi->min) / hi->bin_width;
/* Tidy up rounding errors */
if ( j < 0 ) j = 0;
if ( j >= hi->n_bins ) j = hi->n_bins - 1;
for ( i=0; i<32; i++ ) {
if ( cat & 1<<i ) hi->bins[i][j]++;
}
}
int *multihistogram_get_data(MultiHistogram *hi, int cat)
{
if ( cat < 0 ) return NULL;
if ( cat > 31 ) return NULL;
return hi->bins[cat];
}
void multihistogram_set_min(MultiHistogram *hi, double min)
{
hi->min = min;
hi->bin_width = (hi->max - hi->min)/hi->n_bins;
multihistogram_delete_all_values(hi);
}
void multihistogram_set_max(MultiHistogram *hi, double max)
{
hi->max = max;
hi->bin_width = (hi->max - hi->min)/hi->n_bins;
multihistogram_delete_all_values(hi);
}
void multihistogram_set_num_bins(MultiHistogram *hi, int n)
{
hi->n_bins = n;
hi->bin_width = (hi->max - hi->min)/hi->n_bins;
multihistogram_delete_all_values(hi);
}
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