ldgamma_cc: Computes the log density of the Gamma distribution

In simonsays1980/finmix: An R package for Bayesian estimation of finite mixture distributions

Description

For each shape and rate parameter pair the log gamma density is computed. Inside the function the unsafe access functions of Armadillo at() and unsafe_col() are used, so now boundary check is performed. In each step the lngamma() function from Rcpp's R namespace is used. At this time unused.

Usage

ldgamma_cc(values, shape, rate)

Arguments

values	A matrix of dimension M x K for which the log-density should be calculated.
shape	A vector of dimension K x 1 with Gamma shape parameters.
rate	A vector of dimension K x 1 with Gamma rate parameters.

Value

A matrix of Gamma log-density values for each pair of parameters in a column.

simonsays1980/finmix documentation built on Dec. 23, 2021, 2:25 a.m.