Normalizes copy number data before segmentation.
Copy number data is normalized using the chosen method. Optionally, outliers can be smoothed using using the DNAcopy package.
The input data must contain these columns: chromosome, start, end.
Normalized values.
DNAcopy:
Venkatraman et al. (2007) A faster circular binary segmentation algorithm for the analysis of array CGH data. Bioinformatics 23: 657-663