Hi,
I am doing canonical discriminant analysis using candisc function from 
the candisc package.
My input is a table of species distribution (columns = abundance of each 
species in each sample)  in samples that are split by categories (rows), 
and I want to know whether each category is associated with a particular 
set of species and their abundances.
I have 20 rows (samples) split into 6 categories, and 17 columns (species).

I am getting the following error message, which I don't understand:

 > can<-candisc(mod, data=canIN)
Error in linear.hypothesis.mlm(mod, hyp.matrix.2, SSPE = SSPE, V = V,  :
  The error SSP matrix is apparently of deficient rank = 16 < 17

Does anyone has any experience in candisc?

-- 
Tanya.


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