/* cdf/chisqinv.c

 * 

 * Copyright (C) 2003, 2007 Brian Gough

 * 

 * 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.

 * 

 * 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 <config.h>

#include <gsl/gsl_cdf.h>

#include <gsl/gsl_sf_gamma.h>

double

gsl_cdf_chisq_Pinv (const double P, const double nu)

{

  return gsl_cdf_gamma_Pinv (P, nu / 2, 2.0);

}

double

gsl_cdf_chisq_Qinv (const double Q, const double nu)

{

  return gsl_cdf_gamma_Qinv (Q, nu / 2, 2.0);

}