Blog Archives

Custom Labels for Ordination Diagram

April 20, 2011
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Custom Labels for Ordination Diagram

Here is how you do custom labels, hull, spider in a vegan ordination diagram: Read more »

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Test Difference Between Diversity-Indices of Two Samples with Abundance Data

April 18, 2011
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Test Difference Between Diversity-Indices of Two Samples with Abundance Data

I adapted a scheme for a permutation test from the PAST Software (Hammer & Harper, http://folk.uio.no/ohammer/past/diversity.html) that tests difference between diversity-indices of two samples with abundance data... Read more »

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Multivariate Repeated Measurements With adonis():

April 18, 2011
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Multivariate Repeated Measurements With adonis():

Lately I had to figure out how to do a repeated measures (or mixed effects) analysis on multivariate (species) data. Here I share code for a computation in R with the adonis function of the vegan package. Credit goes to Gavin Simpson providing most of ...

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