Are you are wanting to truncate to prevent the Gamma RV from being precisely zero? In that case, would it not suffice to simply add 1e-9 to it? But Gamma(2 ,1) already rules out zero, so I’m confused about what your ultimate objective is.
Are you are wanting to truncate to prevent the Gamma RV from being precisely zero? In that case, would it not suffice to simply add 1e-9 to it? But Gamma(2 ,1) already rules out zero, so I’m confused about what your ultimate objective is.