HI, I think it would be better to store this as a list. For example:
list1<- list(kuantan.dt[kuantan.dt[,2]==11,],kuantan.dt[kuantan.dt[,2]==12,]) If you wanted to delete 31 December and do column bind: res<-cbind(kuantan.dt[kuantan.dt[,2]==11,], kuantan.dt[kuantan.dt[,2]==12 & kuantan.dt[,3]!=31,]) # assuming 3rd column corresponds to day A.K. ----- Original Message ----- From: Roslina Zakaria <zrosl...@yahoo.com> To: "r-help@r-project.org" <r-help@r-project.org> Cc: Sent: Sunday, November 11, 2012 9:39 PM Subject: [R] arrange data Dear r-users, I have daily rainfall data from 1971 to 2000. I would like to extract november and december data only. I would also like to do column bind for november and december, therefore I would like to delete 31 December from december data so that the length of november and december are the same. Hope somebody can help me. I tried this below: > kuantan.dt.1 <- kuantan.dt[(kuantan.dt$Bulan >=11) & (kuantan.dt$Bulan <= > 12),] > head(kuantan.dt.1) ; tail(kuantan.dt.1) Tahun Bulan Hari Jumlah.Hujan.mm. 305 71 11 1 0.0 306 71 11 2 16.3 307 71 11 3 0.0 308 71 11 4 0.0 309 71 11 5 12.2 310 71 11 6 4.6 Tahun Bulan Hari Jumlah.Hujan.mm. 10953 0 12 26 0.0 10954 0 12 27 0.0 10955 0 12 28 20.0 10956 0 12 29 15.5 10957 0 12 30 6.4 10958 0 12 31 9.3 [[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. ______________________________________________ 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.
