[R-sig-eco] Negative Data Error with Decorana in Vegan
Michele Tobias
tobias.michele at gmail.com
Tue Jul 20 02:35:29 CEST 2010
I'm fairly inexperienced with the Vegan package, so my apologies if I'm
asking a very basic question. I'm trying to use the decorana function
in the Vegan package. My data is all positive numbers but I get an
error that says this:
Error in decorana(dataord) :
'decorana' cannot handle negative data entries
The data (dataord) is of class data.frame and originated from an SQLite
database brought into R using the RSQLite package, just in case those
details matter. I'm fairly sure that the numbers in the data frame are
numbers and not text, but if they were text, would that cause the error?
Any ideas what is causing the problem or how to get around it? Thank you!
best,
Michele
--
Michele Tobias
PhD Candidate
Geography Graduate Group
University of California, Davis
mmtobias at ucdavis.edu
http://ucdavis.academia.edu/MicheleTobias
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