SIGMAS                  compute all required SIGMA matrices for
                        '"pfrr"' and '"upfrr"'
choose.fx               choose fx for principal fitted response
                        reduction and unstructured principal fitted
                        response reduction
matpower                compute the M^power where M is a symmetric
                        matrix.
mbrdr                   Main function for model-based response
                        dimension reduction regression
mbrdr.x                 Accessor functions for data in dr objects
mps                     Minneapolis School dataset
