object Gini extends Impurity
Class for calculating the Gini impurity (http://en.wikipedia.org/wiki/Decision_tree_learning#Gini_impurity) during multiclass classification.
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def
calculate(count: Double, sum: Double, sumSquares: Double): Double
variance calculation
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def
calculate(counts: Array[Double], totalCount: Double): Double
information calculation for multiclass classification
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instance: Gini.this.type
Get this impurity instance.
Get this impurity instance. This is useful for passing impurity parameters to a Strategy in Java.
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