Best: 0.902310 using {'clf': RandomForestClassifier(bootstrap=True, class_weight=None, criterion='entropy',
                       max_depth=None, max_features='auto', max_leaf_nodes=128,
                       min_impurity_decrease=0.0, min_impurity_split=None,
                       min_samples_leaf=1, min_samples_split=2,
                       min_weight_fraction_leaf=0.0, n_estimators=200,
                       n_jobs=None, oob_score=False, random_state=42, verbose=0,
                       warm_start=False), 'clf__criterion': 'entropy', 'clf__max_leaf_nodes': 128, 'clf__n_estimators': 200, 'clf__random_state': 42, 'fs__k': 8, 'fs__score_func': <function chi2 at 0x7f0c43bf69d8>}