# medium for elasticities

**URL:** https://forum.qiime2.org/t/medium-for-elasticities/29858
**Category:** Library Support
**Tags:** micom
**Created:** [April 11, 2024, 2:21pm UTC](https://forum.qiime2.org/t/medium-for-elasticities/29858 "2024-04-11T14:21:46Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![dgenc](https://forum.qiime2.org/letter_avatar_proxy/v4/letter/d/b782af/32.png) [@dgenc](https://forum.qiime2.org/u/dgenc)
#### Post date: [April 11, 2024, 2:21pm UTC](https://forum.qiime2.org/t/medium-for-elasticities/29858/1 "2024-04-11T14:21:46Z")

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Hello!  
I have used the Western diet file provided at [media/media at main · micom-dev/media · GitHub](https://github.com/micom-dev/media/tree/main/media). I thought they were already completed mediums, but when I tried complete\_medium function, I saw the EX\_rxn number went down from 170 to 129. Maybe I am missing a point out. Because when I don't modify the community medium (their upper bounds) I get zero elasticity.  
When I ran the completed medium (the one with 129 EX\_rxn), I saw that most of the exchange and abundance elasticities were 0 and also the non-zero outputs had the same numbers. So I thought maybe I did something wrong on the way.  
Thank you so much in advance!