The factor statement should have been: (missed the 'vec' on the first reading)
dataDF$A1 <- factor(dataDF$A1, levels=vec) On Tue, Dec 1, 2009 at 10:57 PM, jim holtman <jholt...@gmail.com> wrote: > Is this what you want: > >> dataDF = data.frame(A1 = c("B", "A", "C"), A2 = c(1,2,3)) >> dataDF > A1 A2 > 1 B 1 > 2 A 2 > 3 C 3 >> dataDF[order(dataDF$A1),] > A1 A2 > 2 A 2 > 1 B 1 > 3 C 3 >> > > If you want the sequence "CAB" then you will have to change the > factors in column 1: > >> dataDF$A1 <- factor(dataDF$A1, levels=c("C", "A", "B")) >> dataDF[order(dataDF$A1),] > A1 A2 > 3 C 3 > 2 A 2 > 1 B 1 >> > > > On Tue, Dec 1, 2009 at 10:36 PM, Hao Cen <h...@andrew.cmu.edu> wrote: >> Hi, >> >> >> >> I have a a vector and a data frame with two columns >> >> vec = c("C", "A", "B") >> >> dataDF = data.frame(A1 = c("B", "A", "C"), A2 = c(1,2,3)) >> >> >> >> I would like to sort the data frame by column A1 such that the order of >> elements in A1 is as the same as in vec. >> >> >> >> After the ordering, the data frame would be >> >> A1 A2 >> >> C 3 >> >> A 2 >> >> B 1 >> >> >> >> Any suggestions would be appreciated. >> >> >> >> Thanks in advance >> >> >> >> Jeff >> >> >> [[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? > -- 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.