R: Calculates feature filter values.

generateFilterValuesData {mlr}

R Documentation

Calculates feature filter values.

Calculates numerical filter values for features. For a list of features, use listFilterMethods.

generateFilterValuesData(task, method = "randomForestSRC_importance",
  nselect = getTaskNFeats(task), ..., more.args = list())

`task`	(Task) The task.
`method`	(character) Filter method(s), see above. Default is “randomForestSRC_importance”.
`nselect`	(`integer(1)`) Number of scores to request. Scores are getting calculated for all features per default.
`...`	(any) Passed down to selected method. Can only be use if `method` contains one element.
`more.args`	(named list) Extra args passed down to filter methods. List elements are named with the filter `method` name the args should be passed down to. A more general and flexible option than `...`. Default is empty list.

(FilterValues). A list containing:

task.desc

[TaskDesc)
Task description.

data

(data.frame) with columns:

name(character)
Name of feature.
type(character)
Feature column type.
method(numeric)
One column for each method with the feature importance values.