Function random_chisquare

numpy/random/src/distributions/distributions.c:459–461

}

double random_chisquare(bitgen_t *bitgen_state, double df) {
  return 2.0 * random_standard_gamma(bitgen_state, df / 2.0);
}

double random_f(bitgen_t *bitgen_state, double dfnum, double dfden) {
  return ((random_chisquare(bitgen_state, dfnum) * dfden) /