mlr3filters (version 0.1.0)

FilterKruskalTest: Kruskal-Wallis Test Filter

Description

Kruskal-Wallis rank sum test filter calling stats::kruskal.test(). The filter value is -log10(p) where p is the p-value. This transformation is necessary to ensure numerical stability for very small p-values.

Format

R6::R6Class inheriting from Filter.

Construction

FilterKruskalTest$new()
mlr_filters$get("kruskal_test")
flt("kruskal_test")

See Also

Dictionary of Filters: mlr_filters

Other Filter: FilterAUC, FilterAnova, FilterCMIM, FilterCarScore, FilterCorrelation, FilterDISR, FilterImportance, FilterInformationGain, FilterJMIM, FilterJMI, FilterMIM, FilterMRMR, FilterNJMIM, FilterPerformance, FilterVariance, Filter, mlr_filters

Examples

# NOT RUN {
task = mlr3::tsk("iris")
filter = flt("kruskal_test")
filter$calculate(task)
as.data.table(filter)

# transform to p-value
10^(-filter$scores)
# }

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