Hi Mohan, Mohan L <l.mohanphys...@gmail.com> 09-Nov-10 15:17: > I want to merge ip,bsent,breceived column to "main" , If the name in > the the "main" data frame is there in the "other" data frame . some > thinng like this: > > name id memory storage ip bsent breceived > > mohan 1 100 20 1 12.00 0.01 > ram 1 200 100 0 00.00 0.00 > kumar 1 400 50 1 1.00 1.00 > xxx 1 100 40 1 00.00 1.110 > aaa 1 800 45 0 00.00 00.00 > mount 1 200 80 0 00.00 00.00 > > > If in case the name in the "main" data frame does not there in the > "other" data frame, simple I want to add zero to ip,bsent,breceived > value.
Is this what you want? newdat <- merge(main,other,by="name",all.x=T) name id memory storage ip bsent breceived 1 aaa 1 800.0 45.0 NA NA NA 2 kumar 1 400.0 50.0 NA NA NA 3 mohan 1 100.2 1.1 1 12 0.01 4 mount 1 200.0 80.0 NA NA NA 5 ram 1 200.0 100.0 NA NA NA 6 xxx 1 100.0 40.0 1 0 1.11 newdat[is.na(newdat)] <- 0 newdat name id memory storage ip bsent breceived 1 aaa 1 800.0 45.0 0 0 0.00 2 kumar 1 400.0 50.0 0 0 0.00 3 mohan 1 100.2 1.1 1 12 0.01 4 mount 1 200.0 80.0 0 0 0.00 5 ram 1 200.0 100.0 0 0 0.00 6 xxx 1 100.0 40.0 1 0 1.11 Marianne -- Marianne Promberger PhD, King's College London http://promberger.info R version 2.12.0 (2010-10-15) Ubuntu 9.04 ______________________________________________ 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.
