March 2019
Beginner to intermediate
448 pages
13h 14m
English
Content preview from R Statistics Cookbook
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Estimating robust covariance matrices
The standard/usual way of estimating covariance matrices involves calculating sums involving the cross products of all pairs of variables. This is obviously greatly impacted by outliers. A single outlier on variable 
contaminates all the covariances involving 
. In order to estimate robust covariance matrices, we will use the robust package.
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