testing: ab testing branch for epiprocess r6 refactor

[dshemetov]

Companion branch for cmu-delphi/epiprocess#431.

Reduces the covid_hosp_explore project to a subset of the forecasters for faster comparison. I found no differences in the forecast outputs. See the r6_refactor.R script for instructions for how to replicate.

[nmdefries]

My run is failing here. Looks like the as_of function is supposed to come from epiprocess, so it should be @importFromed epiprocess above and docs rebuilt.

Edit: Hmm, getting ✖ looping.R:26: @importFrom Excluding unknown export from epiprocess: 'as_of'. when I try this locally.

[dshemetov]

Ah right, so that's a line changed in this PR's branch and it dispatches to as_of.epi_archive on the refactor branch. The current live exploration-tooling+epiprocess combo uses epi_archive$as_of (which is the old R6 method for doing as_of on archives). Iirc this was the only line I had to refactor in exploration-tooling to get the refactor branch to work.

[dshemetov]

Try these:

# A branch
pak::pkg_install("cmu-delphi/exploration-tooling@ds/epiprocess")
pak::pkg_install("cmu-delphi/epiprocess@ds/r6-clean")


# B branch
pak::pkg_install("cmu-delphi/exploration-tooling@main")
pak::pkg_install("cmu-delphi/epiprocess@dev")

[nmdefries]

Thanks, will try these branch combos.