gini_impurities: Gini Impurities
In ben519/mltools: Machine Learning Tools

Identify group weighted gini impurities using pairs of columns within a dataset. Can be used to located hierarchical data, or 1-1 correspondences

1	gini_impurities(dt, wide = FALSE, verbose = FALSE)

`dt`	A data.table with at least two columns
`wide`	Should the results be in wide format?
`verbose`	Should progress be printed to the screen?

For pairs of columns (Var1, Var2) in a dataset, calculates the weighted gini impurity of Var2 relative to the groups determined by Var1

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library(data.table)
gini_impurities(alientrain)
gini_impurities(alientrain, wide=TRUE)

ben519/mltools documentation built on Sept. 22, 2021, 4:30 p.m.

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