cov | Covariance Matrix Calculation for (Potentially Grouped) Data |
degreesFreedom | Degrees of Freedom of a Covariance Matrix |
Haff_shrinkage | Haff Shrinkage Precision Estimator |
pooled_cov | Pooled Covariance Estimator |
tr | Trace of Matrix |
tu | Function to be optimized for Haff Shrinkage |
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