normalizedGini: Calculating the normalized Gini index

Description Usage Arguments Examples

View source: R/normalizedGini.R

Description

This function calculates the Gini index of a classification rule outputting probabilities. It is a classical metric in the context of Credit Scoring. It is equal to 2 times the AUC (Area Under ROC Curve) minus 1.

Usage

1
normalizedGini(actual, predicted)

Arguments

actual

The numeric binary vector of the actual labels observed.

predicted

The vector of the probabilities predicted by the classification rule.

Examples

1
normalizedGini(c(1, 1, 1, 0, 0), c(0.7, 0.9, 0.5, 0.6, 0.3))

scoringTools documentation built on Jan. 13, 2021, 8:35 p.m.