Le vendredi 30 novembre 2012 à 07:27 -0800, ramoss a écrit : > Hello, > > I have a variable in a data frame that contains NA values. I just want to > subset so that I get the obs where that variable is missing. > In SAS I would do: > > data missing; > set test; > if myvalue=' '; > run; > > How can I perform this simple task in R? missing <- test[is.na(test$myvalue),] or missing <- subset(test, is.na(myvalue))
Regards > Thanks in advance for your help. > > > > -- > View this message in context: > http://r.789695.n4.nabble.com/subset-data-frame-by-variable-with-missing-value-tp4651439.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. ______________________________________________ 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.
