pgamma - The gamma cumulative distribution function
Calling Sequence
F = pgamma(x,a)
Parameters
x
: real
a
: positive real, parameter of the gamma distribution (x and a can be matrices with common size).
F
: matrix.
Description
The gamma cumulative distribution function.
F =Prob(X<=x) where X is a random variable with a gamma distribution
of parameter a. The gamma density function with parameter a is: