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...NA values, this code messes up the dataframe. I was trying to pick apart this code and could not understand why it didn't work when there were no NA values. If there are no NA values and I run just the part: apply(adata[,1:2],1,function(x)any(is.na(x))) it results in: 2 3 5 6 FALSE FALSE FALSE FALSE I was thinking that I can put in an if statement, but I think there has to be a better way. Any ideas/help? Thank you. ----- In theory, practice and theory are the same. In practice, they are not - Albert Einstein -- View this message in context: http://r.789695.n4.nabble.com/...