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java.lang.Object gov.sandia.cognition.util.AbstractCloneableSerializable gov.sandia.cognition.statistics.method.WilcoxonSignedRankConfidence
@ConfidenceTestAssumptions(name="Wilcoxon SignedRank Sum Test", alsoKnownAs="Wilcoxon signedrank test", description={"A nonparameteric statistical hypothesis test for the case of two related samples or repeated measurements on a single sample.","Wilcoxon SignedRank Sum Test does not assume that the data are generated according to a particular distribution.","Used as an alternative to a paired Studentt test when the data are not assumed to be Gaussian."}, assumptions={"The differences between paired samples are independent.","Each difference comes from a continuous population, identical for all differences, and is symmetric about a common median.","The data are oridinal variables such that comparisons such as greater than, less than, and equal to have meaning."}, nullHypothesis="The median difference between the paired samples is 0.0", dataPaired=true, dataSameSize=true, distribution=UnivariateGaussian.CDF.class, reference=@PublicationReference(author="Wikipedia",title="Wilcoxon signedrank test",type=WebPage,year=2009,url="http://en.wikipedia.org/wiki/Wilcoxon_signedrank_test")) public class WilcoxonSignedRankConfidence
This is a Wilcoxon SignedRank Sum test, which performs a pairwise test to determine if two datasets are different.
Nested Class Summary  

static class 
WilcoxonSignedRankConfidence.Statistic
ConfidenceStatistics associated with a Wilcoxon test 
Field Summary  

static WilcoxonSignedRankConfidence 
INSTANCE
Default instance since the class has no state. 
Constructor Summary  

WilcoxonSignedRankConfidence()
Creates a new instance of WilcoxonSignedRankConfidence 
Method Summary  

WilcoxonSignedRankConfidence.Statistic 
evaluateNullHypothesis(Collection<? extends Number> data1,
Collection<? extends Number> data2)
Computes the probability that two data were generated by the same distribution. 
static double[] 
ranks(Collection<? extends Number> values)
Returns the ranks of the values in ascending order 
Methods inherited from class gov.sandia.cognition.util.AbstractCloneableSerializable 

clone 
Methods inherited from class java.lang.Object 

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait 
Methods inherited from interface gov.sandia.cognition.util.CloneableSerializable 

clone 
Field Detail 

public static final WilcoxonSignedRankConfidence INSTANCE
Constructor Detail 

public WilcoxonSignedRankConfidence()
Method Detail 

public WilcoxonSignedRankConfidence.Statistic evaluateNullHypothesis(Collection<? extends Number> data1, Collection<? extends Number> data2)
NullHypothesisEvaluator
evaluateNullHypothesis
in interface NullHypothesisEvaluator<Collection<? extends Number>>
data1
 First dataset to considerdata2
 Second dataset to consider
public static double[] ranks(Collection<? extends Number> values)
values
 Collection of values to rank


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