You need the is.na() function: > dataset <- data.frame(No = 1:4, Name = c("Smith", "Mayor", "Miller", > "Baltic"), Turnover = c(1500, 200, NA, 750)) > dataset No Name Turnover 1 1 Smith 1500 2 2 Mayor 200 3 3 Miller NA 4 4 Baltic 750
[1] TRUE TRUE FALSE TRUE > dataset[complete.cases(dataset), ] No Name Turnover 1 1 Smith 1500 2 2 Mayor 200 4 4 Baltic 750 > dataset[!is.na(dataset$Turnover), ] No Name Turnover 1 1 Smith 1500 2 2 Mayor 200 4 4 Baltic 750 > subset(dataset, !is.na(Turnover)) No Name Turnover 1 1 Smith 1500 2 2 Mayor 200 4 4 Baltic 750 On Thu, Dec 17, 2015 at 7:50 AM, <g.maub...@weinwolf.de> wrote: > Dear All, > > I am new to "R" and search for a solution to exclude cases if a certain > variable contains NA for a case. > > Example > > No Name Turnover > 1 Smith 1500 > 2 Mayor 200 > 3 Miller > 4 Batic 750 > > I would like to create a subset excluding case 3 Miller NA. > > I tried to following: > > new_dataset <- subset(dataset, subset = Turnover != NA) > > This does not work. The new_dataset contains all variables but not cases > are left. R responds "Variables with all observations missing". > > How could I do it right? > > Kind regards > > Georg > ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.