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macroalgae
2011 Sep 13
1
mvpart analyses with covariables
...ance ~
.,factors,margin=0.08,cp=0,xv="1se",xval=nrow(abundance),xvmult=100,which=4)
where abundance is 4th root transformed fish abundance (103 species x 168
samples), and factors is the relief (high, medium, low profile, sand
inundated reef, flat), benthos (coral, sessile inverts, kelp, macroalgae,
seagrass, sand), depth (continuous in meters), latitude, and longitude of
each sample.
To try and incorporate spatial autocorrelation (as a covariate) into this I
have been trying the command -
ABUNDTMRT <- mvpart(abundance ~ environ + spatial,
data.frame,margin=0.08,cp=0,xv="1se",...