def feature_detector(self, tokens, index, history):
        return self._feature_detector(tokens, index, history)
merge the expected and actual estimates
dataset/ETHPy150Open nltk/nltk/nltk/tag/sequential.py/ClassifierBasedTagger.feature_detector--crossover with--dataset/ETHPy150Open CGATOxford/cgat/obsolete/pipeline_metagenomebenchmark.py/mergeExpectedAndObservedGenomeCoverage