Pass argument to group_by
mytable <- function( x, group ) {
x %>%
group_by( .data[[group]] ) %>%
summarise( n = n() )
}
group_string <- 'Species'
mytable( iris, group_string )
`summarise()` ungrouping output (override with `.groups` argument)
# A tibble: 3 x 2
Species n
<fct> <int>
1 setosa 50
2 versicolor 50
3 virginica 50