I have download the copy number variation file of Ovarian serous cystadenocarcinoma in TCGA.
How does TCGA get Segment_Mean (please see the following image) in the of copy number variations files? Is there any algorithm to calculate the Segment_Mean? What is the algorithm?
The file shown in the above image was downloaded in: https://gdc-portal.nci.nih.gov/search/s
The following image show the position where the file was downloaded:
Thanks for any help.