@athowes there are a few bows to tie here and I am investigating the CI issues on mac and windows (it looks likes its also on main so presumably unrelated) but I think this is at the point its worth taking a look at. See https://github.com/epinowcast/epidist/actions/runs/12112515981/job/33766065135 for the same failure on main.

Updates in bullets:

• Added a marginalised likelihood model based on primarycensored. This can be specified using as_epidist_marginal_model(). This is currently limited to Weibull, Log-Normal, and Gamma distributions with uniform primary censoring but this will be generalised in future releases. This is waiting on A lookup in R to find the stan number associated with a probability distribution primarycensored#175.
• Added a transform_data s3 method to allow for data to be transformed for specific models. This is specifically useful for the marginal model at the moment as it allows reducing the data to its unique strata.
• Switched over to using the marginal model everywhere
• Added helper functions for new variables to avoid code duplication in vignettes
• Added a heuristic for the marginal model that adapts the relative observation time to be Inf when it is much longer than the maximum delay. This is required as otherwise there are numerical instability errors from try to divide by something very near one (i.e the cdf at long observation times). In primarycensored this is a warning but here with more naive users I think it makes sense to make an informed choice and flag that that has happened.