Stixbox Function
Last update : 21/4/2006
qgamma - The gamma inverse distribution function
Calling Sequence
- x = qgamma(p,a [,s])
Parameters
-
p : probability
-
a,s : positive real, parameter of the gamma distribution (a and scale can be scalar or matrix with common size with p). scale is optional, default value is 1.
-
x : inverse of the gamma cumulative distribution function of parameter a at p
Description
The gamma inverse distribution function. The gamma distribution is:
s^(a)/Gamma(a) * X^(a-1) * exp(- s*X)