https://github.com/ntamas/plfit
test_continuous.c
/* test_continuous.c
*
* Copyright (C) 2011 Tamas Nepusz
*
* 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 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.
*/
#include <math.h>
#include "plfit.h"
#include "test_common.h"
int test_continuous() {
plfit_result_t result;
plfit_continuous_options_t options;
double data[10000];
size_t n;
plfit_continuous_options_init(&options);
options.p_value_method = PLFIT_P_VALUE_SKIP;
n = test_read_file("continuous_data.txt", data, 10000);
result.alpha = 2.53282;
result.xmin = 1.43628;
plfit_log_likelihood_continuous(data, n, result.alpha, result.xmin, &result.L);
ASSERT_ALMOST_EQUAL(result.L, -9276.42, 1e-1);
result.alpha = 0;
result.xmin = 1.43628;
plfit_estimate_alpha_continuous(data, n, result.xmin, &options, &result);
ASSERT_ALMOST_EQUAL(result.alpha, 2.53282, 1e-4);
result.alpha = result.xmin = result.L = 0;
plfit_continuous(data, n, &options, &result);
ASSERT_ALMOST_EQUAL(result.xmin, 1.43628, 1e-4);
ASSERT_ALMOST_EQUAL(result.alpha, 2.53282, 1e-4);
ASSERT_ALMOST_EQUAL(result.L, -9276.42, 1e-1);
return 0;
}
int main(int argc, char* argv[]) {
return test_continuous();
}