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Diffstat (limited to 'python/pyspark/ml/tuning.py')
| -rw-r--r-- | python/pyspark/ml/tuning.py | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/python/pyspark/ml/tuning.py b/python/pyspark/ml/tuning.py index dcfee6a317..cae778869e 100644 --- a/python/pyspark/ml/tuning.py +++ b/python/pyspark/ml/tuning.py @@ -223,7 +223,11 @@ class CrossValidator(Estimator): # TODO: duplicate evaluator to take extra params from input metric = eva.evaluate(model.transform(validation, epm[j])) metrics[j] += metric - bestIndex = np.argmax(metrics) + + if eva.isLargerBetter(): + bestIndex = np.argmax(metrics) + else: + bestIndex = np.argmin(metrics) bestModel = est.fit(dataset, epm[bestIndex]) return CrossValidatorModel(bestModel) |