/R/How to use group_by inside a function?

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     50

Source: stackoverflow.com

Similar codes

0 vote156 views4 answers
If not na in r
R
1 vote143 views2 answers
Create a dataframe with column names in r
R
1 vote128 views1 answer
R dataframe column factor
R
1 vote132 views1 answer
R dataframe append row
R
0 vote65 views1 answer
Copy dataframe in r
R
0 vote139 views1 answer
How to format a number in r
R
0 vote144 views1 answer
R: foreach multiple argument
R
3 votes141 views2 answers
Create dataframe or table in r
R
5 votes111 views1 answer
Residual plots in r for linear regression
R
1 vote127 views1 answer
Show factor levels in r
R