# Plotfingerprint (to check the strength IP in chip)

**URL:** <https://help.galaxyproject.org/t/plotfingerprint-to-check-the-strength-ip-in-chip/7928>\
**Category:** Uncategorized\
**Tags:** picard\_markduplicates\
**Created:** [April 25, 2022, 2:40pm UTC](https://help.galaxyproject.org/t/plotfingerprint-to-check-the-strength-ip-in-chip/7928 "2022-04-25T14:40:06Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Vini](https://avatars.discourse-cdn.com/v4/letter/v/c77e96/32.png) [@Vini](https://help.galaxyproject.org/u/Vini)\
**Post date:** [April 25, 2022, 2:40pm UTC](https://help.galaxyproject.org/t/plotfingerprint-to-check-the-strength-ip-in-chip/7928/1 "2022-04-25T14:40:07Z")

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Hi everyone , I am trying to use Plotfingerprint function in galaxy for my Chip data for the mark H3K27ac between by Ip and input sample . After running the command with the following parameters 100bp bin size , ignore duplicates(yes) , skip zeros(Yes) . I get a wierd plot where the IP sample looks like input and input sample looks like enriched. Its a reverse plot. Kindly help