Variables that are cluster-mean centered will be labeled with a "cwc" suffix (abbreviation for centered within cluster), the cluster means of level-1 variables will be labeled with a "means" suffix, and variables that are grand-mean centered will be labeled with a "cgm" suffix (abbreviation for centered grand mean).
Data frame, matrix, or tibble containing the data to center.
Column label of
An augmented database with variables indicating level-1 cluster means, cluster-mean centered level-1 variables, grand-mean centered level-1 variables, and grand-mean centered level-2 variables.
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