Coverage for pyspark/mllib/stat/test.py : 96%

# 

# Licensed to the Apache Software Foundation (ASF) under one or more 

# contributor license agreements. See the NOTICE file distributed with 

# this work for additional information regarding copyright ownership. 

# The ASF licenses this file to You under the Apache License, Version 2.0 

# (the "License"); you may not use this file except in compliance with 

# the License. You may obtain a copy of the License at 

# 

# http://www.apache.org/licenses/LICENSE-2.0 

# 

# Unless required by applicable law or agreed to in writing, software 

# distributed under the License is distributed on an "AS IS" BASIS, 

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 

# See the License for the specific language governing permissions and 

# limitations under the License. 

# 

from pyspark.mllib.common import inherit_doc, JavaModelWrapper 

__all__ = ["ChiSqTestResult", "KolmogorovSmirnovTestResult"] 

class TestResult(JavaModelWrapper): 

""" 

Base class for all test results. 

""" 

@property 

def pValue(self): 

""" 

The probability of obtaining a test statistic result at least as 

extreme as the one that was actually observed, assuming that the 

null hypothesis is true. 

""" 

return self._java_model.pValue() 

@property 

def degreesOfFreedom(self): 

""" 

Returns the degree(s) of freedom of the hypothesis test. 

Return type should be Number(e.g. Int, Double) or tuples of Numbers. 

""" 

return self._java_model.degreesOfFreedom() 

@property 

def statistic(self): 

""" 

Test statistic. 

""" 

return self._java_model.statistic() 

@property 

def nullHypothesis(self): 

""" 

Null hypothesis of the test. 

""" 

return self._java_model.nullHypothesis() 

def __str__(self): 

return self._java_model.toString() 

@inherit_doc 

class ChiSqTestResult(TestResult): 

""" 

Contains test results for the chi-squared hypothesis test. 

""" 

@property 

def method(self): 

""" 

Name of the test method 

""" 

return self._java_model.method() 

@inherit_doc 

class KolmogorovSmirnovTestResult(TestResult): 

""" 

Contains test results for the Kolmogorov-Smirnov test. 

"""