Hi all For the data below, I would like to return a logical value indicating differences in the data.
#Create data Data..<-data.frame(a=rep(1,10),b=c(rep(1,9),2),c=c(rep(1,8),2,2)) a b c 1 1 1 1 2 1 1 1 3 1 1 1 4 1 1 1 5 1 1 1 6 1 1 1 7 1 1 1 8 1 1 1 9 1 1 2 10 1 2 2 So what I want is to return logical value telling me if all the values are the same. So the result would be a b c DidChange 1 1 1 1 FALSE 2 1 1 1 FALSE 3 1 1 1 FALSE 4 1 1 1 FALSE 5 1 1 1 FALSE 6 1 1 1 FALSE 7 1 1 1 FALSE 8 1 1 1 FALSE 9 1 1 2 TRUE 10 1 2 2 TRUE I bet apply could handle this elegantly but that family of functions is still not 100% intuitive to me. Thoughts. Thanks everyone Cheers, Josh -- View this message in context: http://r.789695.n4.nabble.com/I-bet-apply-has-a-solution-tp4362294p4362294.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
