Utility for Dorfman-Berbaum-Metz variance components

`UtilDBMVarComp(dataset, FOM, FPFValue = 0.2)`

## Arguments

- dataset
The dataset object

- FOM
The figure of merit

- FPFValue
Only needed for `LROC`

data **and** FOM = "PCL" or "ALROC";
where to evaluate a partial curve based figure of merit. The default is 0.2.

## Value

A list containing the variance components.

## Examples

```
result <- UtilDBMVarComp(dataset02, FOM = "Wilcoxon")
```