# what is dada2 message mean

**URL:** https://forum.qiime2.org/t/what-is-dada2-message-mean/17734
**Category:** User Support
**Created:** [December 9, 2020, 12:58pm UTC](https://forum.qiime2.org/t/what-is-dada2-message-mean/17734 "2020-12-09T12:58:33Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![cherman2](https://forum.qiime2.org/user_avatar/forum.qiime2.org/cherman2/32/17129_2.png) [@cherman2](https://forum.qiime2.org/u/cherman2)
#### Post date: [December 9, 2020, 8:09pm UTC](https://forum.qiime2.org/t/what-is-dada2-message-mean/17734/2 "2020-12-09T20:09:36Z")

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Hello @kimshinseung,  
Getting this message when running dada2 is normal. Colin explains this really well in this post:

> [@Does learning error rates step of DAD2 have to have all samples under study?](https://forum.qiime2.org/t/does-learning-error-rates-step-of-dad2-have-to-have-all-samples-under-study/11356/8):
>
> Got it! Ok, I think everything is fine. Dada2 uses the first x samples (sorted) to build up the n-reads values and train the error models. Because errors are similar on each run, this is the default and should work well. You are good to go slight_smile Colin

what this message is saying is that dada2 is basically training your error models with 267211440 total bases in 1113381 reads from 5 samples.  
As long as you are getting an the correct output files from dada2 then you are golden 😄

Hope this helps!  
Chloe 🐢

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