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Function that simplifies feature if possible

Usage

simplifyFeature(originalFeature, featureNames, featureValues)

Arguments

originalFeature

feature to simplify

featureNames

vector of all feature names, repeated according to multiplicity

featureValues

vector of all values corresponding to features (same order as featureNames)

Value

name of feature to use Original feature if no _neg suffix if _neg suffix: original feature and value if none or multiple alternative values, other feature value if exactly one alternative