What's the proper R idiom for rbinding SPDFs together when the IDs overlap? Note that here (as is often the case) the IDs are basically meaningless so it's pretty annoying that I can't just make rbind ignore them....
library(sp) library(UScensus2000) library(UScensus2000tract) data(state) # for state names states
library(sp) library(UScensus2000) library(UScensus2000tract) data(state) # for state names states