## S3 method for class 'SingleArrayUnitModel':
readUnits(this, array, units=NULL, ..., verbose=FALSE)NULL, all units are read.getCellIndices() of the
AffymetrixCdfFile class (if cdf was not specified),
but also to the readUnits() method of the
list structure that readUnits() of
AffymetrixCelFile returns.SingleArrayUnitModel.