Cross-Join for data.table — cross_join • mlr3misc

A safe version of data.table::CJ() in case a column is called sorted or unique.

Usage

cross_join(dots, sorted = TRUE, unique = FALSE)

Arguments

dots: (named list())
Vectors to cross-join.
sorted: (logical(1))
See data.table::CJ().
unique: (logical(1))
See data.table::CJ().

Value

data.table::data.table().

Examples

cross_join(dots = list(sorted = 1:3, b = letters[1:2]))
#> Key: <sorted, b>
#>    sorted      b
#>     <int> <char>
#> 1:      1      a
#> 2:      1      b
#> 3:      2      a
#> 4:      2      b
#> 5:      3      a
#> 6:      3      b