Function Reference: nbincdf

statistics: p = nbincdf (x, n, ps)
statistics: p = nbincdf (x, n, ps, "upper")

Negative binomial cumulative distribution function (CDF).

For each element of x, compute the cumulative distribution function (CDF) at x of the negative binomial distribution with parameters n and ps. The size of p is the common size of x, n, and ps. A scalar input functions as a constant matrix of the same size as the other inputs.

The algorithm uses the cumulative sums of the binomial masses.

p = nbincdf (x, n, ps, "upper") computes the upper tail probability of the lognormal distribution.

When n is integer this is the Pascal distribution. When n is extended to real numbers this is the Polya distribution.

The number of failures in a Bernoulli experiment with success probability ps before the n-th success follows this distribution.

See also: nbininv, nbinpdf, nbinrnd, nbinstat

Source Code: nbincdf