BufferedMatrix.justRMA
                        Use BufferedMatrix objects to facilitate RMA
                        computation with low memory overhead
BufferedMatrix.read.celfiles
                        Read CEL file data into PM or MM BufferedMatrix
BufferedMatrix.read.probematrix
                        Read CEL file data into PM or MM BufferedMatrix
bg.correct.BufferedMatrix
                        RMA preprocessing functions that work on
                        BufferedMatrix objects
