Package org.apache.spark.mllib.stat.test

Class StudentTTest

Object

org.apache.spark.mllib.stat.test.StudentTTest

public class StudentTTest
extends Object

Performs Students's 2-sample t-test. The null hypothesis is that the two data sets have equal mean. This test assumes equal variance between the two samples and does not assume equal sample size. For unequal variances, Welch's t-test should be used instead.

See Also:

• Student's t-test (Wikipedia)

Constructor Summary

Constructors

Constructor	Description
StudentTTest()

Method Summary

Modifier and Type	Method	Description
static DStream<org.apache.spark.mllib.stat.test.StreamingTestResult>	doTest(DStream<scala.Tuple2<StatCounter,StatCounter>> data)
static final String	methodName()
static final String	nullHypothesis()
static org.slf4j.Logger	org$apache$spark$internal$Logging$$log_()
static void	org$apache$spark$internal$Logging$$log__$eq(org.slf4j.Logger x$1)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

StudentTTest

public StudentTTest()

Method Details

methodName

public static final String methodName()

nullHypothesis

public static final String nullHypothesis()

doTest

public static DStream<org.apache.spark.mllib.stat.test.StreamingTestResult> doTest(DStream<scala.Tuple2<StatCounter,StatCounter>> data)

org$apache$spark$internal$Logging$$log_

public static org.slf4j.Logger org$apache$spark$internal$Logging$$log_()

org$apache$spark$internal$Logging$$log__$eq

public static void org$apache$spark$internal$Logging$$log__$eq(org.slf4j.Logger x$1)