[R-sig-eco] Relating skull shape to environmental variables

[Frederico Faleiro]

Hi Diogo,
I did not understand why you can not use the dudi.pca, but you can find the
tutorial from the authors here:
http://www.esapubs.org/archive/ecol/E095/002/ and the paper here:
https://esajournals.onlinelibrary.wiley.com/doi/full/10.1890/13-0196.1.

Cheers,

Em qua., 15 de jul. de 2020 às 15:23, Diogo B. Provete <dbprovete using gmail.com>
escreveu:

> Dear list members,
> My PhD student Adriana Acero and I are trying to relate the mean cranial
> shape of species (Principal components scores) of a bat community to the
> land use type (% of each land use class measured from satellite data) in
> which species occur.
> Therefore, our analytical problem is more of a RLQ (relating traits to
> environment) that is common in community ecology. We want to use the ade4::
> rlq function to relate the 10 PCs representing the position of each species
> in the shape space (*Q*), to the environmental matrix (*R*), using the
> species composition matrix as *L. *
>
> The problem is that the ade4::rlq function only accepts objects of the
> dudi.pca class. Did anyone come across a similar issue?
>
> We tried to follow this blog post
> <https://www.r-bloggers.com/r-for-ecologists-rlq-analysis-semi-explained/
> >,
> which builds the analysis step by step using custom functions and also
> tried to coerce our PCA object into a as.dudi class, but it didn't work.
>
> Thank you in advance,
> Diogo
>
>
> --
>
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>
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>
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-- 
Frederico Faleiro
Postdoctoral Researcher in the INCT-EECBio (https://www.eecbio.ufg.br/)
Department of Ecology | Institute of Biological Science | Federal
University of Goiás | Brazil
RG: https://www.researchgate.net/profile/Frederico_Faleiro
CV: http://lattes.cnpq.br/4926404840659003

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