Sorry I read the name of the variable and not the Deterministic, usually I give the same name to avoid confusion. In you case instead of "mu", you want "contributions" (the name of the Deterministic) in var_names
Sorry I read the name of the variable and not the Deterministic, usually I give the same name to avoid confusion. In you case instead of "mu", you want "contributions" (the name of the Deterministic) in var_names