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dgamma

The gamma density function

Calling Sequence

f = dgamma(x,a)

Parameters

x

real

a

positive real (a can be a scalar or matrix with common size with x)

f

gamma density function with parameter a at the values of x :

Description

The gamma density function.

f(x)=x.^(a-1)exp(-x)./Gamma(a)1_{x>=0}

Examples

x=0:0.1:10; 
y=dgamma(x,3);
plot(x,y)
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