./splinesurv/src/mainloop.c

CmiscUtils/dnegbin [ Functions ]

NAME

    dnegbin --- negative binomial density

FUNCTION

Compute the density of a NB(r,p) evaluated at x.

SYNOPSIS

642 static inline double dnegbin(double x, double r, double p)

SOURCE

646 {
647     double out = gammafn(x+r)/( dfactorial(x))/gammafn(r)*pow(p,r)*pow(1-p,x);
648     return out;
649 }