# Understanding Gneiss - questions regarding the analysis

**URL:** <https://forum.qiime2.org/t/understanding-gneiss-questions-regarding-the-analysis/3244>\
**Category:** User Support\
**Tags:** gneiss\
**Created:** [February 28, 2018, 2:01pm UTC](https://forum.qiime2.org/t/understanding-gneiss-questions-regarding-the-analysis/3244 "2018-02-28T14:01:08Z")\
**Posts on this page:** 1\
**Showing post:** 13

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**Author:** ![mortonjt](https://forum.qiime2.org/user_avatar/forum.qiime2.org/mortonjt/32/3488_2.png) [@mortonjt](https://forum.qiime2.org/u/mortonjt)\
**Post date:** [March 19, 2018, 2:32pm UTC](https://forum.qiime2.org/t/understanding-gneiss-questions-regarding-the-analysis/3244/13 "2018-03-19T14:32:54Z")

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1. Neither - those are the regression coefficients. If you have continuous variables, it's the slope. If you have categorical variables, its the difference between categories. This can also be thought of as effect size.

2. A similar question has been posted [here](https://forum.qiime2.org/t/gneiss-regression-summary-issue/2356).

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