Helper function to find duplicated rows

Helper function to find duplicated rows

Usage

get_duplicated_rows(x, col_names = NULL, output = "index")

Arguments

x

DataFrame or data.table

col_names

character vector, columns in which duplication are searched for

output

string with the output format to be returned - one of "index" (index of duplicates) or "data" (subset of input data with duplicates)

Value

integer vector or data.table with duplicated rows

Examples

dt <- data.table::data.table(a = c(1, 2, 3), b = c(3, 2, 2))
get_duplicated_rows(dt, "b")
#> [1] 2 3
get_duplicated_rows(dt, "b", output = "data")
#>        a     b
#>    <num> <num>
#> 1:     2     2
#> 2:     3     2