the sigma samples you are seeing are from the unconstrained space. to get samples from the constrained space (0, 50) you need to apply a transform. this can be done automatically using Predictive. please see e.g. this post.
the sigma samples you are seeing are from the unconstrained space. to get samples from the constrained space (0, 50) you need to apply a transform. this can be done automatically using Predictive. please see e.g. this post.