[R] Best way to setClass and setMethod for an R package?

[Jonathan Greenberg]

Folks:

I'm putting together an R package, and I was wondering where,
specifically, I put both class definitions (via setClass) as well as
setMethod calls?  Is there a particular file name I need to use?
Thanks!

--j

-- 
Jonathan A. Greenberg, PhD
Assistant Project Scientist
Center for Spatial Technologies and Remote Sensing (CSTARS)
Department of Land, Air and Water Resources
University of California, Davis
One Shields Avenue
Davis, CA 95616
Phone: 415-763-5476
AIM: jgrn307, MSN: jgrn307 at hotmail.com, Gchat: jgrn307