Hi Tanvir, I think what you want is: lapply(e,"[",1) lapply(e,"[",2)
Jim On Tue, Mar 8, 2016 at 11:47 AM, Mohammad Tanvir Ahamed via R-help <r-help@r-project.org> wrote: > Hi, > > a <- c(1:5)b <- c(1:3) > c <- 1 > d <- 5 > e <- list(a,b,c,d) > > # To extract every 1st element > lapply(e,"[[",1) > > ## Out-put > [[1]] > [1] 1 > > [[2]] > [1] 1 > > [[3]] > [1] 1 > > [[4]] > [1] 5 > > #To extract every 2nd element (Need help in this case) > lapply(e,"[[",2) > > ## Expected outcome > [[1]] > [1] 2 > > [[2]] > [1] 2 > > [[3]] > [1] NA > > [[4]] > [1] NA > > > > Any help will be appreciated . Thanks > > > Tanvir Ahamed > Göteborg, Sweden | mashra...@yahoo.com > > ______________________________________________ > 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. ______________________________________________ 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.
