Chapter 3: Correlation and Covariance > Usage Notes

Usage Notes

This chapter is concerned with measures of correlation for bivariate data as follows:

      The usual multivariate measures of correlation and covariance for continuous random variables are produced by function imsls_f_covariances

      For data grouped by some auxiliary variable, function imsls_f_pooled_covariances can be used to compute the pooled  covariance matrix along with the means for each group. 

      Partial correlations or covariances are computed by imsls_f_partial_covariances

      Function imsls_f_robust_covariances computes robust M-estimates of the mean and covariance matrix from a matrix of observations.


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