R: Plot information values

plot.woe {klaR} | R Documentation

## Plot information values

### Description

Barplot of information values to compare dicriminator of the transformed variables.

### Usage

    ## S3 method for class 'woe'
    plot(x, type = c("IV", "woes"), ...)

### Arguments

`x` | An object of class `woe`.
`type` | Character to specify the plot type, see below. Either `"IV"` (default) or `"woes"`.
`...` | Further arguments to be passed to the barplot function.

### Details

For `type=="IV"` a barplot of information values for all transformed variables. A thumb rule of interpretation is that Values above 0.3 are considered as strongly discrimative where values below 0.02 are considered to characterize unpredictive variables. For `type=="woes"` for each variable the relative frequencies of all transformed levels are plotted.

### Value

No value is returned.

### Author(s)

Gero Szepannek

### References

Good, I. (1950): Probability and the Weighting of Evidences. Charles Griffin, London.

Kullback, S. (1959): Information Theory and Statistics. Wiley, New York.

### See Also

`woe`, `predict.woe`

### Examples

    # see examples in ?woe

[Package klaR version 0.6-12 Index]