I?ve a question on saving a earth object to disk. Say m is the model then print(object.size(m), units=?Mb?) 163.8 Mb and save it off save(m, ?tmp.rda?) and ?tmp.rda? is roughly 171Mb file. I would like this to be much smaller. So I try m$bx<-NULL then print(object.size(m), units=?Mb?) 14.9 Mb Great! however when I save it off save(m, ?tmp.rda?) and ?tmp.rda? is roughly 171Mb file ? the same size. Can you help? By the way earth is awesome! Thanks! Glen -- View this message in context: http://r.789695.n4.nabble.com/earth-package-question-tp4369741p4369741.html Sent from the R help mailing list archive at Nabble.com.