Join some class existing levels to new, larger class levels for classification problems.

Join some class existing levels to new, larger class levels for classification problems.

joinClassLevels(task, new.levels)

Arguments

task	(Task) The task.
new.levels	(list of character) Element names specify the new class levels to create, while the corresponding element character vector specifies the existing class levels which will be joined to the new one.

Value

Task.

Examples

joinClassLevels(iris.task, new.levels = list(foo = c("setosa", "virginica")))
#> Supervised task: iris-example
#> Type: classif
#> Target: Species
#> Observations: 150
#> Features:
#>    numerics     factors     ordered functionals 
#>           4           0           0           0 
#> Missings: FALSE
#> Has weights: FALSE
#> Has blocking: FALSE
#> Has coordinates: FALSE
#> Classes: 2
#>        foo versicolor 
#>        100         50 
#> Positive class: foo