From cfca01136bd7443c1d9daf8e8e256635eec20ddc Mon Sep 17 00:00:00 2001
From: Peng <peng.meng@intel.com>
Date: Mon, 22 May 2017 22:42:37 +0800
Subject: [PATCH] [SPARK-20764][ML][PYSPARK] Fix visibility discrepancy with
numInstances and degreesOfFreedom in LR and GLR - Python version
## What changes were proposed in this pull request?
SPARK-20097 exposed degreesOfFreedom in LinearRegressionSummary and numInstances in GeneralizedLinearRegressionSummary. Python API should be updated to reflect these changes.
## How was this patch tested?
The existing UT
Author: Peng <peng.meng@intel.com>
Closes #18062 from mpjlu/spark-20764.
---
python/pyspark/ml/regression.py | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/python/pyspark/ml/regression.py b/python/pyspark/ml/regression.py
index 3c3fcc8d9b..2d17f95b0c 100644
--- a/python/pyspark/ml/regression.py
+++ b/python/pyspark/ml/regression.py
@@ -323,6 +323,14 @@ class LinearRegressionSummary(JavaWrapper):
"""
return self._call_java("numInstances")
+ @property
+ @since("2.2.0")
+ def degreesOfFreedom(self):
+ """
+ Degrees of freedom.
+ """
+ return self._call_java("degreesOfFreedom")
+
@property
@since("2.0.0")
def devianceResiduals(self):
@@ -1565,6 +1573,14 @@ class GeneralizedLinearRegressionSummary(JavaWrapper):
"""
return self._call_java("predictionCol")
+ @property
+ @since("2.2.0")
+ def numInstances(self):
+ """
+ Number of instances in DataFrame predictions.
+ """
+ return self._call_java("numInstances")
+
@property
@since("2.0.0")
def rank(self):
--
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