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This is the gamma_p_derivative from the boost library

Usage

gammapDer(a, z)

Arguments

a

The numeric 'a' parameter in the upper incomplete gamma

z

The numeric 'z' parameter in the upper incomplete gamma

Value

lowergamma results

Author

Matthew L. Fidler

Examples


gammapDer(1:3, 3)
#> [1] 0.04978707 0.14936121 0.22404181

gammapDer(1, 1:3)
#> [1] 0.36787944 0.13533528 0.04978707