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Diffstat (limited to 'python/pyspark/mllib/classification.py')
| -rw-r--r-- | python/pyspark/mllib/classification.py | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/python/pyspark/mllib/classification.py b/python/pyspark/mllib/classification.py index 1c0c536c4f..9e28dfbb91 100644 --- a/python/pyspark/mllib/classification.py +++ b/python/pyspark/mllib/classification.py @@ -63,7 +63,10 @@ class LogisticRegressionModel(LinearModel): def predict(self, x): _linear_predictor_typecheck(x, self._coeff) margin = _dot(x, self._coeff) + self._intercept - prob = 1/(1 + exp(-margin)) + if margin > 0: + prob = 1 / (1 + exp(-margin)) + else: + prob = 1 - 1 / (1 + exp(margin)) return 1 if prob > 0.5 else 0 |