Code is taken from Numerical Recipes in C.

Definition in file Gammaq.cxx.

`#include "Gammaq.h"`

`#include <iostream>`

`#include <cassert>`

`#include <cmath>`

Include dependency graph for Gammaq.cxx:

Go to the source code of this file.

## Namespaces | |

namespace | hippodraw |

namespace | hippodraw::Numeric |

## Functions | |

double | gammln (double xx) |

Calculates natural log of a gamma function. | |

double | gammq (double a, double x) |

Calculates Q, the probability that the chi2 should exceed a particilar chi2 (input) by chance. | |

void | gcf (double *gammcf, double a, double x, double *gln) |

Calculates Q, the probability that the chi2 should exceed a particilar chi2 (input) by chance, by using continued fractions. | |

void | gser (double *gamser, double a, double x, double *gln) |

Calculates Q, the probability that the chi2 should exceed a particilar chi2 (input) by chance, by using series approximation. |

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