Compute imbalance ratio of a binary dataset

Given a two-class dataset, it computes its imbalance ratio as {Size of minority class}/{Size of majority class}

imbalanceRatio(dataset, classAttr = "Class")

Arguments

dataset	A target `data.frame` to compute its imbalance ratio
classAttr	A `character` containing the class name attribute.

A real number in [0,1] representing the imbalance ratio of dataset

data(glass0)

imbalanceRatio(glass0, classAttr = "Class")
#> [1] 0.4861111