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help with "by" command
2 messages · Kenneth Takagi, amalka
5 days later
Thanks very much for the help. I ended up getting it to work with one small change: by(foo, foo$V2, function(foo) mean(foo$trust, na.rm=T)) thanks again, Ari -- View this message in context: http://r.789695.n4.nabble.com/help-with-by-command-tp3766285p3779622.html Sent from the R help mailing list archive at Nabble.com.