> -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > On Behalf Of Juan Pablo Fededa > Sent: Tuesday, February 27, 2007 9:47 AM > To: [email protected] > Subject: [R] ordered matrix question > > Hi all, > > Is there an easy way to generate an object wich will be the same matrix, but > ordered by de cfp value? > The data frame consists of numeric columns: > "Block" "X" "Y" "cfp" "yfp" "ID" > 0 524 244 213.41795 7.18482109 1 > 0 556 270 65.383904 9.568372661 2 > 0 528 316 40.789474 5.573732175 3 > 0 642 432 135.81734 12.40134427 4 > 0 716 430 34.359135 3.944923077 5 > 0 894 362 109.63158 3.197160316 6 > 0 958 130 63.98452 3.396452004 7 > 0 506 92 83.513931 9.105496856 8 > 0 476 464 91.674919 9.178089414 9 > 0 364 426 44.13932 2.068334364 10 > > Thanks in advance, > > > Juan Pablo
Juan, Look at ?order. Something like this should work your.df[order(your.df$cfp, decreasing=TRUE), ] Hope this is helpful, Dan Daniel Nordlund Bothell, WA USA ______________________________________________ [email protected] 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.
