Function to be used for the normalization (e.g. "mean", "median", or
"sum"). User-defined functions similar to these can be specified here as
well.
quietly
Logical. If TRUE, messages and warnings will not be shown.
Value
A copy of the input RccSet that has count data adjusted by positive control
counts. The positive control scaling factor is recorded in PosFactor in the
output's phenoData (if this column already exists in the input, it will
be overwritten in the output copy).