@Override
public void incrementCount(String word, double by) {
wordFrequencies.incrementCount(word, by);
if (wordFrequencies.getCount(word) >= minWordFrequency && vocabWords.indexOf(word) < 0)
vocabWords.add(word);
}
@Override
public void incrementDocCount(String word, double by) {
docFrequencies.incrementCount(word, by);
}