Hi all,
This is probably a very simple question but I cannot figure out how to do
it. I run the fourthcorner method with my data and would like to adjust the
p values for multiple comparisons using Holm correction. When I run the
fourthcorner I obtain the results in yellow. What do I need to do to be able
to aply the Holm correction to those p values?
> library(ade4)
> four1 <- fourthcorner(tabR, tabL, tabQ, modeltype = 1, nrepet = 999, tr01
= FALSE)
> summary(four1)
Fourth-corner Statistics
Permutation method 1 ( 999 permutations)
---
Var. R Var. Q Stat. Value Prob.
RABINT / SPAN r -0.0478943 0.038 *
RABINT / TREE r 0 1.000
RABINT / SHRU r 0 1.000
RABINT / HERB r 0.0261879 0.340
RABINT / SEDG r -0.0320345 0.316
RABINT / GRAS r 0.0124263 0.399
Thank you in advance for your help,
Regards,
C.
--
Cristina E. Ramalho
PhD Candidate
MSc in GIS
Ecosystem Restoration & Intervention Ecology Research Group
School of Plant Biology (M090)
The University of Western Australia
35 Stirling Highway, Crawley WA 6009 Perth, Australia
Phone: +61 (08) 6488 4655; Fax: +61 (08) 6488 7461
www.plants.uwa.edu.au/research/ecosystem_restoration
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