Hello all,

This is a general question about data structures for what I'll call generically 
'organism occurrence data'. Most of the packages for dealing with 
ecology/phylogenetic data in R deal with some combination of occurrence data 
(sample unit x taxa), site/sample data (data about the sampling units), trait 
data (data about the taxa), and taxonomic (some kind of tree, taxonomic or 
phylogenetic). I started to look around and see if there was a package that 
provided data structures and some generic functionality for manipulating this 
kind of data in R; I think I'm looking for the "organism occurrence" equivalent 
of the "sp" package for spatial data. The mefa package does some of this, but 
the idea of 'segments' appears to introduce some limitations. And it doesn't 
have things like accessors that I would expect for data structures (coords for 
SpatialDataFrames). The phylobase package does this for phylogenetic data, but 
I'm looking for something that would include occurrence data.

Is there currently a package that provides data structures (other than mefa) 
for this type of data. If not, has anyone ever talked about trying to put 
something like this together?

Jason Law
Statistician, City of Portland
Water Pollution Control Laboratory
6543 N Burlington Ave,
Portland, OR

503-823-1038
[email protected]


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