R: Estimate the residual variance.

estimateResidualVariance {mlr} | R Documentation

## Estimate the residual variance.

### Description

Estimate the residual variance of a regression model on a given task. If a regression learner is provided instead of a model, the model is trained (see train) first.

### Usage

    estimateResidualVariance(x, task, data, target)

### Arguments

`x` | (Learner or WrappedModel) Learner or wrapped model.
`task` | (RegrTask) Regression task. If missing, `data` and `target` must be supplied.
`data` | (data.frame) A data frame containing the features and target variable. If missing, `task` must be supplied.
`target` | (`character(1)`) Name of the target variable. If missing, `task` must be supplied.

[Package mlr version 2.19.0 Index]