Gini impurity (Geron Eq 5-1, morie.fn grgin)

Gini impurity (Geron Eq 5-1, morie.fn grgin)

Usage

morie_geron_gini_impurity_grgin(y)

Arguments

y

Class label vector.

Value

List with gini, proportions, classes, counts, max_possible, majority_class.

Examples

V <- c(1, 2, 3, 4, 5, 6, 7, 8)
morie_geron_gini_impurity_grgin(V)
#> $gini
#> [1] 0.875
#> 
#> $proportions
#> [1] 0.125 0.125 0.125 0.125 0.125 0.125 0.125 0.125
#> 
#> $classes
#> [1] 1 2 3 4 5 6 7 8
#> 
#> $counts
#> [1] 1 1 1 1 1 1 1 1
#> 
#> $max_possible
#> [1] 0.875
#> 
#> $majority_class
#> [1] 1
#> 
#> $estimate
#> [1] 0.875
#> 
#> $n
#> [1] 8
#>