# How are methylation data normalized?

**URL:** https://forum.depmap.org/t/how-are-methylation-data-normalized/269
**Category:** Q&A
**Created:** [October 26, 2020, 8:29pm UTC](https://forum.depmap.org/t/how-are-methylation-data-normalized/269 "2020-10-26T20:29:57Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![muxingu](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.depmap.org/muxingu/32/114_2.png) [@muxingu](https://forum.depmap.org/u/muxingu)
#### Post date: [October 26, 2020, 8:29pm UTC](https://forum.depmap.org/t/how-are-methylation-data-normalized/269/1 "2020-10-26T20:29:57Z")

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Hi there,  
I am interested in using some methylation data, for example: [https://depmap.org/portal/download/all/?release=CCLE+2019&file=CCLE\_RRBS\_TSS1kb\_20181022.txt.gz](https://depmap.org/portal/download/all/?release=CCLE+2019&file=CCLE_RRBS_TSS1kb_20181022.txt.gz)

The values are normalized between 0 and 1. Is there a documentation showing how the normalization was done? I couldn’t find it in the publication or the website.

Thank you for your help.  
Muxin Gu