diff options
Diffstat (limited to 'examples/src/main/python/mllib/gradient_boosting_regression_example.py')
| -rw-r--r-- | examples/src/main/python/mllib/gradient_boosting_regression_example.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/examples/src/main/python/mllib/gradient_boosting_regression_example.py b/examples/src/main/python/mllib/gradient_boosting_regression_example.py index 758e224a9e..877f8ab461 100644 --- a/examples/src/main/python/mllib/gradient_boosting_regression_example.py +++ b/examples/src/main/python/mllib/gradient_boosting_regression_example.py @@ -43,7 +43,7 @@ if __name__ == "__main__": # Evaluate model on test instances and compute test error predictions = model.predict(testData.map(lambda x: x.features)) labelsAndPredictions = testData.map(lambda lp: lp.label).zip(predictions) - testMSE = labelsAndPredictions.map(lambda (v, p): (v - p) * (v - p)).sum() /\ + testMSE = labelsAndPredictions.map(lambda lp: (lp[0] - lp[1]) * (lp[0] - lp[1])).sum() /\ float(testData.count()) print('Test Mean Squared Error = ' + str(testMSE)) print('Learned regression GBT model:') |