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This is the gamma_p from the boost library

Usage

gammap(a, z)

Arguments

a

The numeric 'a' parameter in the normalized lower incomplete gamma

z

The numeric 'z' parameter in the normalized lower incomplete gamma

Value

gammap results

Details

The gamma p function is given by:

gammap = lowergamma(a, z)/gamma(a)

Author

Matthew L. Fidler

Examples


gammap(1, 3)
#> [1] 0.9502129
gammap(1:3, 3)
#> [1] 0.9502129 0.8008517 0.5768099
gammap(1, 1:3)
#> [1] 0.6321206 0.8646647 0.9502129