How to use group_by inside a function?
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 50groupby
df['frequency'] = df['county'].map(df['county'].value_counts())
county frequency
1 N 5
2 N 5
3 C 1
4 N 5
5 S 1
6 N 5
7 N 5Copyright © 2021 Codeinu
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