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Resolution 09-07-2020 03:26 AM

Analysis WGBS data question

I'm analyzing WGBS (bulk) data from ENCODE project.
I would like to know how do many researchers analyze WGBS data.

When I extracted CpG sites having > 10 coverage on 20 samples, CpG sites having >10 coverage on more samples than 70% of all samples are approx. 30 % of all CpG sites. so if one region be focused, the methylation information of the region contains many missing value.

I think that imputation can not be applied, because of numerousness of missing value. So should I treat average methylation rate on each focused regions and compare with average methylation rate ?

and additional question is that How bacth effect and blood contamination effect are removed?

I'm beginner. so I need information (paper, web sites shows analysis process)
I hope your help

thank you

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