Ordinal encoding (Geron Ch 2, morie.fn grord)

enc(level k) = k, 0-based over the declared level order.

Usage

morie_geron_ordinal_encoding_grord(categories, levels = NULL)

Arguments

categories

Vector of category values.

levels

Optional level order; default sort(unique(.)).

Value

List with encoded, levels, mapping.

Examples

V <- c(1, 2, 3, 4, 5, 6, 7, 8)
morie_geron_ordinal_encoding_grord(V)
#> $encoded
#> [1] 0 1 2 3 4 5 6 7
#> 
#> $levels
#> [1] 1 2 3 4 5 6 7 8
#> 
#> $mapping
#> 1 2 3 4 5 6 7 8 
#> 0 1 2 3 4 5 6 7 
#> 
#> $estimate
#> [1] 0 1 2 3 4 5 6 7
#> 
#> $n
#> [1] 8
#>