Depend on primarycensoreddist in custom family brms functions

[athowes]

The initial version of primarycensoreddist was just made available. It is an R package which has the functions:

• dprimarycensoreddist() dpcens(): Compute the primary event censored PMF for delays
• pprimarycensoreddist() ppcens(): Compute the primary event censored CDF for delays
• rprimarycensoreddist() rpcens(): Generate random samples from a primary event censored distribution

We should be able to use these functions to replace our implementations in posterior_predict_family and log_lik_family (I don't think for posterior_epred_family). This would reduce code duplication (we are just replacing the distribution basically in some of these functions, while copy pasting code currently).

[seabbs]

Agree. FYi the aim is to release primarycensoreddist to CRAN by the end of next week. We should also be able to use the stan side code for a marginalised model (and the count based version of that model as well probably more interestingly

[athowes]

Agree. FYI the aim is to release primarycensoreddist to CRAN by the end of next week.

Updates on timeline for this? From README looks like it's not on CRAN at the moment?

[seabbs]

its not submitting tomorrow/weds

[seabbs]

you could just depend on this via a universe and update when it hits cran but so more gated by effort to do the code changing I think

[athowes]

I don't think this is urgent so from my POV happy to wait until it's on CRAN.

Unless the timeline for acceptance after submission to CRAN is weeks +?

[athowes]

Flag that primarycensored is on CRAN now I think, so this can go in