Bob Carpenter

Is this issue for the sampler and a services function? Could you explain where the sampler functionality will go and how the new services function will differ from our existing...

The problem seems to be that there are calls from within ADVI that use `double` values, so all the constants get dropped. The reason to fix this is to make...

We need to answer at least the following before building this: * Is this a new service argument callback or do we piggyback on the iteration writer using iteration =...

For new callback vs. using existing one, you could trace down how RStan uses the iterations. The RNG issue just means we can't call the var_context to print and then...

Thanks for reporting. Here's a simpler example that doesn't rely on an external function. ``` functions { real foo(real x, real y) { return x / y; } } transformed...

We can do this by wrapping all the `real` arguments in a `to_real()` function, which should cast up integers and get compiled away everywhere else. Converting to pass by value...

Hi, @lhunsicker --- the way to ping someone is reference them. Ben is @bgoodri. He should see all the rstan issues even without being pinged. Given that it's an install...

Thanks. I'll get to these ASAP.

Will a dense to sparse conversion lose derivative information on the zero entries? We have `append_row` and `append_col` instead of `rbind` and `cbind`. What signatures are you considering adding?

Yes. That was the question. If it's data, you can drop the zeros, but if it's parameter, you need to keep all those in the sparse form.