cramer {FSinR}

Cramer V measure

Description

Generates an evaluation function that calculates Cramer's V value (Cramer 1946 ), evaluating features individually (individual measure). This function is called internally within the filterEvaluator function.

Usage

cramer()

Value

Returns a function that is used to generate an individual evaluation measure using Cramer V.

References

Cramer H ( 1946 ). Mathematical methods of statistics / by Harald Cramer . Princeton University Press Princeton . ISBN ISBN 0-691-08004-6.

Examples

## Not run:  

## The direct application of this function is an advanced use that consists of using this 
# function directly to individually evaluate a set of features
## Classification problem

# Generate the evaluation function with Cramer
cramer_evaluator <- cramer()
# Evaluate the features (parameters: dataset, target variable and features)
cramer_evaluator(iris,'Species',c('Sepal.Length'))

## End(Not run)