Application of the segmentation strategy to urothelial tumors hybridized on Affymetrix 250k Nsp arrays. Bars indicate allelic imbalances detected by unpaired segmentation (red), CNAG (blue), and dChipSNP (purple). In both parts, the top panel shows BAF estimates and the lower panel copy number estimates for two samples in data set 2. (a) Chromosome 9 of urothelial tumor UC1. (b) Chromosome 3 of urothelial tumor UC3.