When few features exist or none of the features correlates well with the target, a subscriptOutOfBounds exception is thrown

[cosmin-novac]

threshold_corr is built using the average correlations of the features, but this also includes the correlation "1" of the target value itself. This means that in situations in which I either don't have many features or they correlate badly, the correlated_features variable remains empty and a subscriptOutOfBounds exception is thrown:

cc <- bounceR::featureFiltering(data = fewFeaturesData,
                                target = targetCol,
                                method = "cc",
                                returning = "data")

Error in subset_df[, paste(collinear$Var1[i])] : subscript out of bounds