Vectorise Dirichlet distribution

[andrjohns]

Description

Requested by a user on the forums

Add broadcasting to the dirichlet distribution, so that the following are valid:

std::vector<VectorXd> ~ dirichlet(VectorXd)
std::vector<VectorXd> ~ dirichlet(std::vector<VectorXd>)

This should simplify the declaration for users, so that there's no need to loop over each individual vector in the array

Current Version:

v2.20.0

[bob-carpenter]

For completeleness, we also need Matrix<T, -1, 1> ~ dirichlet(vector<Matrix<T, -1, 1>)

…

On Sep 19, 2019, at 4:24 PM, Andrew Johnson ***@***.***> wrote: Description Requested by a user on the forums Add broadcasting to the dirichlet distribution, so that the following are valid: std::vector<VectorXd> ~ dirichlet(VectorXd) std::vector<VectorXd> ~ dirichlet(std::vector<VectorXd>) This should simplify the declaration for users, so that there's no need to loop over each individual vector in the array Current Version: v2.20.0 — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or mute the thread.

[mcol]

Fixed by #1363.