Boruta (version 1.2)

TentativeRoughFix: Rough test for tentative attributes

Description

In some circumstances (too short Boruta run, unfortunate mixing of shadow attributes, tricky dataset...), Boruta can leave some attributes Tentative. TentativeRoughFix performs a simplified, weaker test for judging such attributes.

Usage

TentativeRoughFix(x,averageOver='finalRound')

Arguments

x

an object of class Boruta.

averageOver

Either number of last randomForest runs to average over, 'finalRound' for averaging over last (final) round or 'allRounds' for averaging over whole Boruta run.

Value

• A Boruta class object with modified finalDecision element. Such object has few additional elements:
• originalDecision
  Original finalDecision.
• averageOver
  Copy of averageOver parameter.

Details

Function claims as Confirmed those attributes that have median ZScore higher than the median ZScore of maximal shadow attribute (maxRand), and the rest as Rejected. Depending of the user choice, medians for the test are count over last round, all rounds or N last randomForest runs.