| Class | Description | 
|---|---|
| Covariance | Computes covariances for pairs of arrays or columns of a matrix. | 
| KendallsCorrelation | Implementation of Kendall's Tau-b rank correlation. | 
| PearsonsCorrelation | Computes Pearson's product-moment correlation coefficients for pairs of arrays
 or columns of a matrix. | 
| SpearmansCorrelation | Spearman's rank correlation. | 
| StorelessCovariance | Covariance implementation that does not require input data to be
 stored in memory. | 
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