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Random under-sampling function

Source: R/rusboost.R
rus.Rd

Function to create temporary training dataset using distribution implied by w.

Usage

rus(y_train, ir = 1)

Arguments

y_train

df on the target variable.

ir

Imbalance ratio. Specifies how many times the under-sampled majority instances are over minority instances.

Value

vector

Details

Following MATLAB, function samples observations of the minority class with replacement and observations of the majority class without replacement.