# Trying to understand coef column (and how to convert it to fold change)

**URL:** <https://forum.biobakery.org/t/trying-to-understand-coef-column-and-how-to-convert-it-to-fold-change/3136>\
**Category:** MaAsLin\
**Created:** [February 15, 2022, 2:33pm UTC](https://forum.biobakery.org/t/trying-to-understand-coef-column-and-how-to-convert-it-to-fold-change/3136 "2022-02-15T14:33:43Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![dts](https://avatars.discourse-cdn.com/v4/letter/d/8491ac/32.png) [@dts](https://forum.biobakery.org/u/dts)\
**Post date:** [February 21, 2022, 10:45am UTC](https://forum.biobakery.org/t/trying-to-understand-coef-column-and-how-to-convert-it-to-fold-change/3136/6 "2022-02-21T10:45:13Z")

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Thank you both! It helped a lot. I saw that previous response, but I was not sure at all if it would fit for the parameters I was using (in fact, I deduce from @himel.mallick answer that this formula is not proper for linear model, right?). Now I changed the analysis\_method to CPLM and transform to NONE, and following the formula I guess I get the log2 fold change correctly.

Thanks again, and keep on doing your excellent job.

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