These shouldn't be showing up right? It also occurs with vec_slice(ig, 0). We will need to create these 0 row slices for ptypes.
library(dplyr, warn.conflicts = FALSE) ig <- group_by(iris, Species) ig[0,] #> Warning: Factor `Species` contains implicit NA, consider using #> `forcats::fct_explicit_na` #> Warning: Factor `Species` contains implicit NA, consider using #> `forcats::fct_explicit_na` #> # A tibble: 0 x 5 #> # Groups: Species [1] #> # … with 5 variables: Sepal.Length <dbl>, Sepal.Width <dbl>, #> # Petal.Length <dbl>, Petal.Width <dbl>, Species <fct>
Created on 2019-07-02 by the reprex package (v0.2.0.9000)
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