tbl_survival to handle cuminc from cmprsk package

[michaelcurry1123]

This will allow people to get cumulative incidence for competing risks for each event.

[ddsjoberg]

I think that is a very good idea! I can make tbl_survival a generic to accept survfit objects and cuminc objects.

[ddsjoberg]

I'll update tbl_survival() to be an S3 generic, and create tbl_survival.survfit(). @michaelcurry1123 would you be interested in writing tbl_survival.cuminc()?

We'll also need to update inline_text.tbl_survival() or ensure the output from tbl_survival.survfit() and tbl_survival.cuminc() are identical so the current version of inline_text.tbl_survival() will still work properly.

[michaelcurry1123]

@ddsjoberg Yes I am interested in that. I know tidy::broom does not support cuminc objects but I do have a function that might help.

[ddsjoberg]

Nice! I created this branch for the update:
https://github.com/ddsjoberg/gtsummary/tree/tbl_survival-cuminc

I made the tbl_survival S3 generic.

[ddsjoberg]

Rather than update that branch I mentioned above, can you fork and make the update on your fork?

[ddsjoberg]

for now, let's only support a single stratification level