try this:
> x <- scan(text = "Granitic Hills 16-20 PZ + Loamy Upland 16-20 PZ + Sandy Loam Upland 12-16 PZ / Sandy Loam, Deep 12-16 PZ + Loamy Upland 12-16 PZ / Sandy Loam Upland 12-16 PZ + Loamy Upland 16-20 PZ", what = '', sep = '\n') Read 5 items > x [1] "Granitic Hills 16-20 PZ" [2] "Loamy Upland 16-20 PZ" [3] "Sandy Loam Upland 12-16 PZ / Sandy Loam, Deep 12-16 PZ" [4] "Loamy Upland 12-16 PZ / Sandy Loam Upland 12-16 PZ" [5] "Loamy Upland 16-20 PZ" > y <- strsplit(x, '/') > # now put NA is there is only one entry > y <- lapply(y, function(.line){ + if (length(.line) == 1) .line <- c(.line, NA) # add NA + .line + }) > do.call(rbind, y) [,1] [,2] [1,] "Granitic Hills 16-20 PZ" NA [2,] "Loamy Upland 16-20 PZ" NA [3,] "Sandy Loam Upland 12-16 PZ " " Sandy Loam, Deep 12-16 PZ" [4,] "Loamy Upland 12-16 PZ " " Sandy Loam Upland 12-16 PZ" [5,] "Loamy Upland 16-20 PZ" NA > On Tue, Aug 21, 2012 at 1:54 AM, Sapana Lohani <lohani.sap...@ymail.com> wrote: > Hello everyone, > > > My dataframe (Soil Type) looks something like this > > Granitic Hills 16-20 PZ > Loamy Upland 16-20 PZ > Sandy Loam Upland 12-16 PZ / Sandy Loam, Deep 12-16 PZ > Loamy Upland 12-16 PZ / Sandy Loam Upland 12-16 PZ > Loamy Upland 16-20 PZ > > I want to separate them at "/", but when there is just one type, I want "NA" > in the second column, How can I do that ?? > > Thank you > [[alternative HTML version deleted]] > > ______________________________________________ > 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. -- Jim Holtman Data Munger Guru What is the problem that you are trying to solve? Tell me what you want to do, not how you want to do it. ______________________________________________ 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.