StreamingTest

Performs online 2-sample significance testing for a stream of (Boolean, Double) pairs. The Boolean identifies which sample each observation comes from, and the Double is the numeric value of the observation.

To address novelty affects, the peacePeriod specifies a set number of initial org.apache.spark.rdd.RDD batches of the DStream to be dropped from significance testing.

The windowSize sets the number of batches each significance test is to be performed over. The window is sliding with a stride length of 1 batch. Setting windowSize to 0 will perform cumulative processing, using all batches seen so far.

Different tests may be used for assessing statistical significance depending on assumptions satisfied by data. For more details, see StreamingTestMethod. The testMethod specifies which test will be used.

Use a builder pattern to construct a streaming test in an application, for example:

val model = new StreamingTest()
  .setPeacePeriod(10)
  .setWindowSize(0)
  .setTestMethod("welch")
  .registerStream(DStream)

Annotations: @Since( "1.6.0" )
Source: StreamingTest.scala

Linear Supertypes

Serializable, Serializable, Logging, AnyRef, Any

Instance Constructors

new StreamingTest()

Annotations
@Since( "1.6.0" )

Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def asInstanceOf[T0]: T0

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Any
def clone(): AnyRef

Attributes
protected[java.lang]
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AnyRef
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@throws( ... )
final def eq(arg0: AnyRef): Boolean

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def equals(arg0: Any): Boolean

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def finalize(): Unit

Attributes
protected[java.lang]
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@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

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def hashCode(): Int

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def initializeLogIfNecessary(isInterpreter: Boolean): Unit

Attributes
protected
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Logging
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
def isTraceEnabled(): Boolean

Attributes
protected
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Logging
def log: Logger

Attributes
protected
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Logging
def logDebug(msg: ⇒ String, throwable: Throwable): Unit

Attributes
protected
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Logging
def logDebug(msg: ⇒ String): Unit

Attributes
protected
Definition Classes
Logging
def logError(msg: ⇒ String, throwable: Throwable): Unit

Attributes
protected
Definition Classes
Logging
def logError(msg: ⇒ String): Unit

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protected
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Logging
def logInfo(msg: ⇒ String, throwable: Throwable): Unit

Attributes
protected
Definition Classes
Logging
def logInfo(msg: ⇒ String): Unit

Attributes
protected
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Logging
def logName: String

Attributes
protected
Definition Classes
Logging
def logTrace(msg: ⇒ String, throwable: Throwable): Unit

Attributes
protected
Definition Classes
Logging
def logTrace(msg: ⇒ String): Unit

Attributes
protected
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Logging
def logWarning(msg: ⇒ String, throwable: Throwable): Unit

Attributes
protected
Definition Classes
Logging
def logWarning(msg: ⇒ String): Unit

Attributes
protected
Definition Classes
Logging
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
def registerStream(data: JavaDStream[BinarySample]): JavaDStream[StreamingTestResult]

Register a JavaDStream of values for significance testing.
Register a JavaDStream of values for significance testing.
data
stream of BinarySample(isExperiment,value) pairs where the isExperiment denotes group (true = experiment, false = control) and the value is the numerical metric to test for significance
returns
stream of significance testing results

Annotations
@Since( "1.6.0" )
def registerStream(data: DStream[BinarySample]): DStream[StreamingTestResult]

Register a DStream of values for significance testing.
Register a DStream of values for significance testing.
data
stream of BinarySample(key,value) pairs where the key denotes group membership (true = experiment, false = control) and the value is the numerical metric to test for significance
returns
stream of significance testing results

Annotations
@Since( "1.6.0" )
def setPeacePeriod(peacePeriod: Int): StreamingTest.this.type

Set the number of initial batches to ignore.
Set the number of initial batches to ignore. Default: 0.

Annotations
@Since( "1.6.0" )
def setTestMethod(method: String): StreamingTest.this.type

Set the statistical method used for significance testing.
Set the statistical method used for significance testing. Default: "welch"

Annotations
@Since( "1.6.0" )
def setWindowSize(windowSize: Int): StreamingTest.this.type

Set the number of batches to compute significance tests over.
Set the number of batches to compute significance tests over. Default: 0. A value of 0 will use all batches seen so far.

Annotations
@Since( "1.6.0" )
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )

Related Doc: package test

class StreamingTest extends Logging with Serializable

Instance Constructors

new StreamingTest()

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

final def getClass(): Class[_]

def hashCode(): Int

def initializeLogIfNecessary(isInterpreter: Boolean): Unit

final def isInstanceOf[T0]: Boolean

def isTraceEnabled(): Boolean

def log: Logger

def logDebug(msg: ⇒ String, throwable: Throwable): Unit

def logDebug(msg: ⇒ String): Unit

def logError(msg: ⇒ String, throwable: Throwable): Unit

def logError(msg: ⇒ String): Unit

def logInfo(msg: ⇒ String, throwable: Throwable): Unit

def logInfo(msg: ⇒ String): Unit

def logName: String

def logTrace(msg: ⇒ String, throwable: Throwable): Unit

def logTrace(msg: ⇒ String): Unit

def logWarning(msg: ⇒ String, throwable: Throwable): Unit

def logWarning(msg: ⇒ String): Unit

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

def registerStream(data: JavaDStream[BinarySample]): JavaDStream[StreamingTestResult]

def registerStream(data: DStream[BinarySample]): DStream[StreamingTestResult]

def setPeacePeriod(peacePeriod: Int): StreamingTest.this.type

def setTestMethod(method: String): StreamingTest.this.type

def setWindowSize(windowSize: Int): StreamingTest.this.type

final def synchronized[T0](arg0: ⇒ T0): T0

def toString(): String

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

Inherited from Serializable

Inherited from Serializable

Inherited from Logging

Inherited from AnyRef

Inherited from Any

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