roc {cutoff} R Documentation

## To Get the Best Cutoff Value for ROC Curve

### Description

Youden index is used for seeking the best cutoff value for ROC Curve.

### Usage

roc(score, class)


### Arguments

 score continuous value class bianary value, 0 and 1

### Value

If the auc of a variate is lower than 0.5, we treat it as negative classification and return information about the negative prediction. Otherwise, The variate will be treated as positive one.

### Examples

roc(score = mtcars$qsec,class = mtcars$am)
roc(score = mtcars$drat,class = mtcars$am)


[Package cutoff version 1.3 Index]