I am having some trouble interpreting the link functions for my hurdle gamma model, any help would be appreciated. My response variable is substance use. In my case, the link function for “mu” is log, the link function for “shape” is identity, and the link function for “hu” is identity. What are the mu estimates, the shape estimate and the hu estimate indicating ? Are the mu estimates the log of the probability that the response variable is 0 ?

Thank you!