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@@ -8,7 +8,9 @@ differentMeansRanking <- function(measurementsTrain, classesTrain, verbose = 3)
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8
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categorical <- sapply(measurementsTrain, class) %in% c("character", "factor")
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9
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if(any(categorical)){
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pValues[categorical] <- sapply(which(categorical), function(featureIndex){
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11
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- chisq.test(measurementsTrain[, featureIndex], classesTrain)$p.value
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+ pval <- 1
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+ if(length(unique(measurementsTrain[, featureIndex])>1)) pval <- chisq.test(measurementsTrain[, featureIndex], classesTrain)$p.value
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+ pval
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})
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}
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