Add .drop to group_by()

nathaneastwood / poorman

A poor man's dependency free grammar of data manipulation

https://nathaneastwood.github.io/poorman/

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Add .drop to group_by() #63

Closed nathaneastwood closed 3 years ago

nathaneastwood commented 4 years ago

Drop groups formed by factor levels that don't appear in the data. The default should be TRUE except when .data has been previously grouped with .drop = FALSE. See group_by_drop_default() for details.

nathaneastwood commented 3 years ago

This work is more or less closed by 849a4db. Additional work may be required to close #82.