[R-sig-eco] Permanova result interpretation

[Tingting Chen]

Dear list,

I have did  PCoA, UPGMA cluster analysis, and adonis on my data. And I got
no clear separation on the PCoA plot and clustering. However the Permanova
test is giving a very small P value. In this case, can I say these two
groups are significantly different?

Thank you very much for any help.

Best,
Tingting


Call:
adonis(formula = mat ~ Condition, data = meta, permutations = 9999)

Permutation: free
Number of permutations: 9999

Terms added sequentially (first to last)

          Df SumsOfSqs  MeanSqs F.Model      R2 Pr(>F)
Condition  1   0.23217 0.232167  6.3284 0.14606  1e-04 ***
Residuals 37   1.35740 0.036686         0.85394
Total     38   1.58956                  1.00000
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
--------------------

Tingting Chen

PhD candidate

Whistler Center for Carbohydrate Research

Department of Food Science

Purdue University

745 Agriculture Mall Drive

West Lafayette, IN 47907

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