Thiago,

  Dear list members,
>   How can I find a polygon centroid? Google shows me a "get.Pcent" function
> within maptools, but it seems to be no longer available...
>   Best wishes,
>   Thiago.
>
I think coordinates from the sp package will do what you want...

library(sp)
?coordinates


Carson


-- 
Carson J. Q. Farmer
ISSP Doctoral Fellow
National Centre for Geocomputation
National University of Ireland, Maynooth,
http://www.carsonfarmer.com/

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