Truncated/folded distributions

[sdwfrost]

I'd like to use folded or truncated distributions in my proposals for Metropolis-Hastings; is this possible with the @dist macro, or do I need to provide a new distribution using the Distributions API?

[ztangent]

There isn't support for this with the @dist DSL unfortunately! But you might be able to use the wrapper functionality provided by https://github.com/probcomp/GenDistributions.jl to wrap a truncated distribution from Distributions.jl.

You can also implement your own distribution in Gen, though note that Gen's API for distributions is not the same as the one for Distributions.jl!