categorical_iv {scorecardModelUtils}

IV table for individual categorical variable

Description

The function takes base data, target and the categorical variable for which IV is to be calculated. It returns a dataframe with the WOE and IV value of the variable.

Usage

categorical_iv(base, target, variable, event = 1)

Arguments

base

input dataframe

target

column / field name for the target variable to be passed as string (must be 0/1 type)

variable

categorical variable name for which IV is to be calculated, to be passed as string

event

(optional) the event class, to be passed as 0 or 1 (default is 1)

Value

The function returns a dataframe.

Author(s)

Arya Poddar <[e-mail]>

Aiana Goyal <[e-mail]>

Examples

data <- iris
data$Species <- as.character(data$Species)
data$Y <- sample(0:1,size=nrow(data),replace=TRUE)
cat_iv <- categorical_iv(base = data,target = "Y",variable = "Species",event = 1)