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gini_index

dtrees_rs::algorithms::common::heuristics::helpers

Function gini_index 

Source 
pub fn gini_index(
    parent_distribution: &[usize],
    left_distribution: &[usize],
    right_distribution: &[usize],
    _parent_entropy: f64,
) -> f64
Expand description

Weighted Gini impurity of the two children of a split.