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

Class WelchTTest

Object

org.apache.spark.mllib.stat.test.WelchTTest

public class WelchTTest
extends Object

Performs Welch's 2-sample t-test. The null hypothesis is that the two data sets have equal mean. This test does not assume equal variance between the two samples and does not assume equal sample size.

See Also:

• Welch's t-test (Wikipedia)

Constructor Summary

Constructors

Constructor	Description
WelchTTest()

Method Summary

Modifier and Type	Method	Description
static DStream<org.apache.spark.mllib.stat.test.StreamingTestResult>	doTest(DStream<scala.Tuple2<StatCounter,StatCounter>> data)
static org.apache.spark.internal.Logging.LogStringContext	LogStringContext(scala.StringContext sc)
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

WelchTTest

public WelchTTest()

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)

LogStringContext

public static org.apache.spark.internal.Logging.LogStringContext LogStringContext(scala.StringContext sc)