R: Get the class weight parameter of a learner.

getClassWeightParam {mlr} | R Documentation

## Get the class weight parameter of a learner.

### Description

Gets the class weight parameter of a learner.

### Usage

    getClassWeightParam(learner, lrn.id = NULL)

### Arguments

`learner` | (Learner | `character(1)`) The learner. If you pass a string the learner will be created via makeLearner.
`lrn.id` | (character) Only used for `BaseEnsembles`. It is possible that multiple learners in a base ensemble have a class weight param. Specify the learner from which the class weight should be extracted.

### Value

numeric LearnerParam: A numeric parameter object, containing the class weight parameter of the given learner.

### See Also

Other learner: `LearnerProperties`, `getHyperPars()`, `getLearnerId()`, `getLearnerNote()`, `getLearnerPackages()`, `getLearnerParVals()`, `getLearnerParamSet()`, `getLearnerPredictType()`, `getLearnerShortName()`, `getLearnerType()`, `getParamSet()`, `helpLearnerParam()`, `helpLearner()`, `makeLearners()`, `makeLearner()`, `removeHyperPars()`, `setHyperPars()`, `setId()`, `setLearnerId()`, `setPredictThreshold()`, `setPredictType()`

[Package mlr version 2.19.0 Index]