pmax has a na.rm argument. Why not just use that? x <- data.frame(a = c(1:5), b=11:15, c=c(111:114,NA))
> do.call(pmax, c(x, na.rm=TRUE)) [1] 111 112 113 114 15 On Wed, Nov 16, 2016 at 3:58 PM, Dimitri Liakhovitski <dimitri.liakhovit...@gmail.com> wrote: > Hello! > > I need to calculate the maximum of each row of a data frame. > This works: > > x <- data.frame(a = 1:5, b=11:15, c=111:115) > x > do.call(pmax, x) > [1] 111 112 113 114 115 > > However, how should I modify it if my data frame has NAs? > I'd like it to ignore NAs and return the maximum of all non-NAs in each row: > > x <- data.frame(a = c(1:5), b=11:15, c=c(111:114,NA)) > x > I'd like it to return: > [1] 111 112 113 114 15 > > Thanks a lot! > > -- > Dimitri Liakhovitski > ______________________________________________ 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.
