This might give you a hint as to how to do it since I have no idea of what your data looks like:
lon <- lat <- matrix(1:100, nrow=5) output <- file('/tempxx.txt', open='w') for (i in 1:5){ x <- cbind(lon[,i], lat[,i]) write.table(x, row.names=FALSE, col.names=FALSE, file=output) cat('>\n', file=output) } close(output) This gives a file like: 1 1 2 2 3 3 4 4 5 5 > 6 6 7 7 8 8 9 9 10 10 > 11 11 12 12 13 13 14 14 15 15 > 16 16 17 17 18 18 19 19 20 20 > 21 21 22 22 23 23 24 24 25 25 > On Mon, Feb 1, 2010 at 11:16 PM, Eunjung Kim <eunjung.haw...@gmail.com> wrote: > *Dear R users, > *I'm facing a trivial problem but I cannot solve it. > My question is: > I want to make data set like this. >> > i_lon1 i_lat1 > i_lon2 i_lat2 > i_lon3 i_lat3 > i_lon4 i_lat4 >> > i+1_lon1 i+1_lat1 > i+1_lon2 i+1_lat2 > i+1_lon3 i+1_lat3 > i+1_lon4 i+1_lat4 >> > i+2_lon1 i+2_lat1 > i+2_lon2 i+2_lat2 > i+2_lon3 i+2_lat3 > i+2_lon4 i+2_lat4 > . > . > . >> > i+5_lon1 i+5_lat1 > i+5_lon2 i+5_lat2 > i+5_lon3 i+5_lat3 > i+5_lon4 i+5_lat4 > > My code is > for (i in 1:5) { > j <- which(!is.na(lat[i,])) > p <- cbind(lon[i,j],lat[i,j]) > cat(c(">",p),sep=" ",file="data.dat",append=T)} > > and what I got is even not close to what I want: many lines of empty and > whole bunch of numbers without line change. > > How can I solve this? > > Thanks in advance, > EJ > -- > <><<><<><<><<><<><<><<><<>< > Eunjung Kim > Department of Oceanography > University of Hawaii at Manoa > 1000 Pope Road > Honolulu, HI 96822 > United States >><>><>><>><>><>><>><>><>><> > > [[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 Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve? ______________________________________________ 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.