Thanks all of you. It works. Have a good weekend!
Allen On 11/18/07, Benilton Carvalho <[EMAIL PROTECTED]> wrote: > > actually, > > clones.info[order(clones.info$CHROMOSOME, clones.info$KB_POSITION),] > > btw, documented in the help file. > b > > On Nov 18, 2007, at 1:54 PM, Henrique Dallazuanna wrote: > > > clones.info[order(clones.info$CHROMOSOME),] > > > > -- > > Henrique Dallazuanna > > Curitiba-Paraná-Brasil > > 25° 25' 40" S 49° 16' 22" O > > > > > > On 18/11/2007, affy snp <[EMAIL PROTECTED]> wrote: > >> Dear list, > >> > >> I have a data frame (238304 rows and 6 columns). I want the data > >> frame > >> sorted by two columns in ascending order. I am showing > >> the first 5 rows of the data frame > >> > >>> clones.info[1:5,1:6] > >> USER_CLONE_ID CHROMOSOME Expr1002 KB_POSITION Allele_A WELL_ID > >> 1 SNP_A-1855402 17 41419603 41419603 C rs17572851 > >> 2 SNP_A-4249904 17 41420045 41420045 A rs17572893 > >> 3 SNP_A-2174835 18 41407760 41407760 C rs17651213 > >> 4 SNP_A-1880271 18 41173993 41173993 A rs17563827 > >> 5 SNP_A-2313232 17 41169023 41169023 C rs17563787 > >> > >> Especially, I want the data frame sorted by column CHROMOSOME > >> first and then by KB_POSITION. Both in ascending orders. > >> > >> So after sorting, it should looks like: > >>> clones.info[1:5,1:6] > >> USER_CLONE_ID CHROMOSOME Expr1002 KB_POSITION Allele_A WELL_ID > >> 1 SNP_A-2313232 17 41169023 41169023 C rs17563787 > >> 2 SNP_A-1855402 17 41419603 41419603 C rs17572851 > >> 3 SNP_A-4249904 17 41420045 41420045 A rs17572893 > >> 4 SNP_A-1880271 18 41173993 41173993 A rs17563827 > >> 5 SNP_A-2174835 18 41407760 41407760 C rs17651213 > >> > >> I looked at the R manual and found order() can be used to sort a > >> vector or data frame but only for one vector. Is it possible to > >> sort by two columns using order() or some other functions in > >> R? > >> > >> Thanks a lot! > >> Allen > >> > >> [[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. > [[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.
