Presently I am working on the CNV data analysis of urothelial bladder carcinoma. I have basically downloaded the data from UCSC cancer genome browser. There are five data sets available for CNV study.The genomic matrix is a tab separated file containing the genomic values for each sample for each probe. The matrix are arranged so that the columns are samples and rows are probes. In addition to this there is one such value after the genomic coordinate. I am wondering what is that value? Are they P-value, Z-value or Q-value. I really didn't get that. Please help me to understand this. I have pasted few examples herewith in yellow marks.