Question: restrict the domain that the sampler moves

[Peifan Wu]

Hi Tamas,

I was wondering whether there are any ways instead of using TransformVariables.jl to restrict the domain where the sampler navigates. For example, instead of R, I just want the sampler to navigate across [0,infty)?
If there's no way to restrict the domain of the possible samples, is there a way to define the likelihood function and its gradient to achieve this? Following the example above, would it work if I define the likelihood on (-infty, 0) as 0 and define the gradient as negative infinity?
Thanks a lot!

Peifan