package test
Type Members
-
case class
BinarySample(isExperiment: Boolean, value: Double) extends Product with Serializable
Class that represents the group and value of a sample.
Class that represents the group and value of a sample.
- isExperiment
if the sample is of the experiment group.
- value
numeric value of the observation.
- Annotations
- @Since( "1.6.0" )
-
class
ChiSqTestResult extends TestResult[Int]
Object containing the test results for the chi-squared hypothesis test.
Object containing the test results for the chi-squared hypothesis test.
- Annotations
- @Since( "1.1.0" )
-
class
KolmogorovSmirnovTestResult extends TestResult[Int]
Object containing the test results for the Kolmogorov-Smirnov test.
Object containing the test results for the Kolmogorov-Smirnov test.
- Annotations
- @Since( "1.5.0" )
-
class
StreamingTest extends Logging with Serializable
Performs online 2-sample significance testing for a stream of (Boolean, Double) pairs.
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 theDStream
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
. ThetestMethod
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" )
-
trait
TestResult[DF] extends AnyRef
Trait for hypothesis test results.
Trait for hypothesis test results.
- DF
Return type of
degreesOfFreedom
.
- Annotations
- @Since( "1.1.0" )