mlr (version 2.3)

getTaskData: Extract data in task.

Description

Useful in trainLearner when you add a learning machine to the package.

Usage

getTaskData(task, subset, features, target.extra = FALSE,
  recode.target = "no")

Value

Either a data.frame or a list with data.frame data and vector target.

See Also

Other task: getTaskCosts; getTaskDescription; getTaskFeatureNames; getTaskFormula, getTaskFormulaAsString; getTaskId; getTaskNFeats; getTaskTargetNames; getTaskTargets; getTaskType; subsetTask

Examples

library("mlbench")
data(BreastCancer)

df = BreastCancer
df$Id = NULL
task = makeClassifTask(id = "BreastCancer", data = df, target = "Class", positive = "malignant")
head(getTaskData)
head(getTaskData(task, features = c("Cell.size", "Cell.shape"), recode.target = "-1+1"))
head(getTaskData(task, subset = 1:100, recode.target = "01"))