Class that represents the group and value of a sample.
Object containing the test results for the chi-squared hypothesis test.
Object containing the test results for the chi-squared hypothesis test.
Object containing the test results for the Kolmogorov-Smirnov test.
Object containing the test results for the Kolmogorov-Smirnov test.
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 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)
Trait for hypothesis test results.
Trait for hypothesis test results.
Return type of degreesOfFreedom
.
Class that represents the group and value of a sample.
if the sample is of the experiment group.
numeric value of the observation.