bins_chim {autoScorecard}

Chi-Square Binning Chi-square binning, using the ChiMerge algorithm for bottom-up merging based on the chi-square test.

Description

Chi-Square Binning Chi-square binning, using the ChiMerge algorithm for bottom-up merging based on the chi-square test.

Usage

bins_chim(df, key_var, y_var, alpha)

Arguments

df

A data.frame with independent variables and target variable.

key_var

A name of index variable name.

y_var

A name of target variable.

alpha

Significance level(discretization);

Value

A data frame, including the contents of the bin, the upper bound of the bin, the lower bound of the bin, and all the contents returned by the get_IV function.

Examples

accepts <- read.csv( system.file( "extdata", "accepts.csv" , package = "autoScorecard" ))
feature2 <- stats::na.omit( accepts[1:200,c(1,3,7:23)] )
all3 <- bins_chim( df = feature2 , key_var = "application_id", y_var = "bad_ind" , alpha=0.1 )