Implement `.by`/`by` - Githubissues

tidyverse / dtplyr

Data table backend for dplyr

https://dtplyr.tidyverse.org

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Closed markfairbanks closed 1 year ago

markfairbanks commented 1 year ago

Closes #399

Overview of changes

Internal helper compute_by() was implemented (modeled after dplyr/dbplyr versions)
A by arg was added to the step_subset_i()/step_subset_j() internal helpers. These are passed the result of compute_by() by filter()/mutate()/summarize()/slice_*().

eutwt commented 1 year ago

Sorry, won't have time to review this. Things are pretty hectic right now where I'm working

markfairbanks commented 1 year ago

No worries, thanks @eutwt