B-diversity Hypothesis Testing

Hey everyone,

So I ran core-metrics command in my dataset to get measures of beta and alpha-diversity. Then, I went to significance test for beta-diversity using PERMANOVA.

I was surprised that a plot for Weighted Unifrac such as this:

can produce a significant result for the differences (in fact, p-value is quite low - 0.001). Is there any explanation for it?


Hi @asbarros

From what I am understand, you are confused as to why you have significant differences between your groups but no distinct clustering.

Bod explains this really well here: Help in the interpretation of results of beta diversity

Hope that helps!

Thanks, that indeed is very helpful!!


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i can see that blue group is linearly different in PC.
Regards, sn

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