Discretizacao (binning)

Converte uma variavel continua em categorias por largura igual, frequencia igual (quantis) ou k-means.

Usage

rnp_discretiza(
  x,
  k = 4L,
  metodo = c("largura", "frequencia", "kmeans"),
  rotulos = NULL
)

Arguments

x

Vetor numerico.

k

Inteiro. Numero de classes.

metodo

String: "largura", "frequencia" ou "kmeans".

rotulos

Vetor opcional de rotulos das classes.

Value

Fator com k niveis.

See also

Other preprocessamento: rnp_dummy(), rnp_imputa(), rnp_normaliza(), rnp_padroniza(), rnp_winsoriza()

Examples

rnp_discretiza(mtcars$mpg, k = 3, metodo = "frequencia")
#>  [1] (16.7,21.4] (16.7,21.4] (21.4,33.9] (16.7,21.4] (16.7,21.4] (16.7,21.4]
#>  [7] [10.4,16.7] (21.4,33.9] (21.4,33.9] (16.7,21.4] (16.7,21.4] [10.4,16.7]
#> [13] (16.7,21.4] [10.4,16.7] [10.4,16.7] [10.4,16.7] [10.4,16.7] (21.4,33.9]
#> [19] (21.4,33.9] (21.4,33.9] (21.4,33.9] [10.4,16.7] [10.4,16.7] [10.4,16.7]
#> [25] (16.7,21.4] (21.4,33.9] (21.4,33.9] (21.4,33.9] [10.4,16.7] (16.7,21.4]
#> [31] [10.4,16.7] (16.7,21.4]
#> Levels: [10.4,16.7] (16.7,21.4] (21.4,33.9]