This article develops some general theory for testing the rank of a matrix. Applications include tests of interaction in two-factor experiments that are more powerful than the usual F test for certain ...
where matrix is a numeric matrix or literal. The RANK function creates a new matrix containing elements that are the ranks of the corresponding elements of matrix. The ranks of tied values are ...
Matrix-covariate is now frequently encountered in many biomedical researches. It is common to fit conventional statistical models by vectorizing matrix-covariate. This strategy results in a large ...
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