# 21Q2 CCLE\_segment\_cn.csv contains U instead of +,0,-

**URL:** <https://forum.depmap.org/t/21q2-ccle-segment-cn-csv-contains-u-instead-of-0/629>\
**Category:** Issues and Bugs\
**Created:** [May 27, 2021, 7:43am UTC](https://forum.depmap.org/t/21q2-ccle-segment-cn-csv-contains-u-instead-of-0/629 "2021-05-27T07:43:28Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![jnoorbak](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.depmap.org/jnoorbak/32/12_2.png) [@jnoorbak](https://forum.depmap.org/u/jnoorbak)\
**Post date:** [June 1, 2021, 7:21pm UTC](https://forum.depmap.org/t/21q2-ccle-segment-cn-csv-contains-u-instead-of-0/629/2 "2021-06-01T19:21:43Z")

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Hi Dan, the ‘U’ means that the amplification status is unknown to us. You can read a bit more about this [here](https://forum.depmap.org/t/u-values-in-the-status-column-in-seg-files/533). Let me know if that helps. -thanks

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