dplyr::count -- include a 0 for factor levels not in the data

mishabalyasin · March 18, 2019, 8:01pm

This is the change in 0.8.0 and first iteration had .drop = FALSE by default, but it was quickly changed because it proved to be too disruptive.

github.com

tidyverse/dplyr/blob/master/NEWS.md#major-changes

# dplyr 0.8.0.9000

* `group_by()` does a shallow copy even in the no groups case (#4221).

* Fixed `mutate()` on rowwise data frames with 0 rows (#4224).

* Fixed handling of bare formulas in colwise verbs (#4183).

* Fixed performance of `n_distint()` (#4202). 

* `group_indices()` now ignores empty groups by default for `data.frame`, which is
  consistent with the default of `group_by()` (@yutannihilation, #4208). 

* Fixed integer overflow in hybrid `ntile()` (#4186). 

* colwise functions `summarise_at()` ... can rename vars in the case of multiple functions (#4180).

* `select_if()` and `rename_if()` handle logical vector predicate (#4213). 

* hybrid `min()` and `max()` cast to integer when possible (#4258).

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