/* cdf/flatinv.c * * Copyright (C) 2003 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 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 <config.h> #include <gsl/gsl_cdf.h> double gsl_cdf_flat_Pinv (const double P, const double a, const double b) { double x; if (P == 1.0) { return b; } else if (P == 0.0) { return a; } x = (1 - P) * a + P * b; return x; } double gsl_cdf_flat_Qinv (const double Q, const double a, const double b) { double x; if (Q == 0.0) { return b; } else if (Q == 1.0) { return a; } x = Q * a + (1 - Q) * b; return x; }

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