# Values in OmicsCNGene.csv 24Q2 release

**URL:** <https://forum.depmap.org/t/values-in-omicscngene-csv-24q2-release/3390>\
**Category:** Issues and Bugs\
**Created:** [July 3, 2024, 4:03pm UTC](https://forum.depmap.org/t/values-in-omicscngene-csv-24q2-release/3390 "2024-07-03T16:03:09Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Alice](https://avatars.discourse-cdn.com/v4/letter/a/779978/32.png) [@Alice](https://forum.depmap.org/u/Alice)\
**Post date:** [July 3, 2024, 4:03pm UTC](https://forum.depmap.org/t/values-in-omicscngene-csv-24q2-release/3390/1 "2024-07-03T16:03:09Z")

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Dear DepMap team,

Would you please explain why the values in the 24Q2 Omics Gene.csv file are changed (lower) compared to the previous versions such as 23Q2 and 23Q4? I know PureCN was used to generate the absolute copy number data in the current release. However, I don’t understand why the CN values on the gene level are much lower than the previous releases.

Best regards,  
Alice

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**Author:** ![simz](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.depmap.org/simz/32/440_2.png) [@simz](https://forum.depmap.org/u/simz)\
**Post date:** [July 3, 2024, 5:32pm UTC](https://forum.depmap.org/t/values-in-omicscngene-csv-24q2-release/3390/2 "2024-07-03T17:32:03Z")

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Hi Alice,

Starting from 24Q2, our relative copy number matrix is no longer log2-transformed to be consistent with our absolute copy number data. Please refer to our release [announcement](https://forum.depmap.org/t/announcing-the-24q2-release/3312) for details on other changes we made that might be relevant.

Thanks,  
Simone