Grouping of a data.frame

This function groups a data.frame according to values of one column.

Usage

group_data_frame(df, by, keep_by = TRUE)

Arguments

df

[data.frame]
A data.frame.

by

[character(1)]
The name of a column of df to group by.

keep_by

[logical(1)]
Keep the grouping column by?

Value

A list of data.frames, subsets of df.

See also

Other data.frame helpers: delete_data_frame_columns()

Examples

df <- data.frame("label" = c("A", "B"), "number" = 1:10)
group_data_frame(df = df, by = "label")
#> $A
#>   label number
#> 1     A      1
#> 3     A      3
#> 5     A      5
#> 7     A      7
#> 9     A      9
#> 
#> $B
#>    label number
#> 2      B      2
#> 4      B      4
#> 6      B      6
#> 8      B      8
#> 10     B     10
#> 
group_data_frame(df = df, by = "label", keep_by = FALSE)
#> $A
#>   number
#> 1      1
#> 3      3
#> 5      5
#> 7      7
#> 9      9
#> 
#> $B
#>    number
#> 2       2
#> 4       4
#> 6       6
#> 8       8
#> 10     10
#>