Additional file 4.

Figure S4 - genome-wide copy number variation detection of single EBV-transformed cell 1168 using existing normalization methods. (a-d) Single-cell CNV detection of EBV-transformed cell 1168 after global loess (a), CGHnormaliter (b), poplowess (c) and Haarseg normalization (d). The y-axis represents the log2 ratios and the x-axis the probe position along the chromosome. The blue line represents the CBS segmentation line. The red region represents the deletion and the green region represents the duplication called by CGHcall.

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Cheng et al. Genome Biology 2011 12:R80   doi:10.1186/gb-2011-12-8-r80