Hello, The problem is that the factors are not orderd by the row number. If you want to check their order, use str(sortdata) and you'll see Santa-Rosa was attributed factor level 4 (in the output, first variable, the 3rd and 4th). Try the following. sortdata <- read.table(text=" county year x1 x2 x3 x4 x5 x6 x7 rank 141 Escambia 2002 6.50 5.95 13.70 20.64 20.49 65.86 100.65 1 142 Escambia 1999 7.31 5.33 15.67 18.94 20.99 73.22 100.53 1 539 Santa-Rosa 2006 10.70 5.99 11.33 15.34 18.69 57.72 76.03 2 540 Santa-Rosa 2007 13.31 5.86 16.15 13.74 29.02 66.80 80.68 2 441 Okaloosa 2004 10.45 6.12 12.02 22.42 22.36 63.38 95.30 3 442 Okaloosa 2005 8.23 8.53 17.83 12.53 25.44 67.19 83.25 3 443 Okaloosa 2006 9.17 4.77 17.88 15.53 20.44 71.56 86.98 3 444 Okaloosa 2003 8.83 6.29 9.79 21.43 34.14 65.44 84.88 3 621 Walton 1999 3.64 11.84 5.21 22.87 23.70 43.46 71.26 4 622 Walton 2000 0.00 5.91 2.47 4.97 7.05 46.11 75.41 4 623 Walton 2001 5.89 6.18 4.61 13.75 20.19 49.38 46.44 4 271 Holmes 2001 12.62 5.18 14.89 15.28 9.10 66.61 74.57 5 272 Holmes 2002 0.00 3.88 5.03 14.53 23.90 64.91 122.85 5 636 Washington 2004 0.00 6.53 16.70 7.78 17.23 48.77 53.22 6 ", header=TRUE, stringsAsFactors=FALSE) str(sortdata) # county is character sortdata$county <- with(sortdata, factor(county, levels=unique(county))) str(sortdata) # county is factor, Santa-Rosa is 2 # it now works plot(sortdata$county,sortdata$x1,col=(c(rainbow(70)))) # preferable? I think it's more intuitive. boxplot(x1~county, data=sortdata, col=rainbow(70)) Hope this helps, Rui Barradas Em 22-05-2012; 23:17, "Peterso" escreveu: > The "county" is a factor and I want to plot county vs variable x1 in the order that the counties are listed now, > which is in the order of the rank variable. But when plotting, county is sorted in alphabetical order again. How can > I plot the graph with the county in the rank order? > > the following command plots county in alphabetical order even though the data frame sortdata is sorted by rank. > > plot(sortdata$county,sortdata$x1,col=(c(rainbow(70)))) > > > below is part of sortdata > > county year x1 x2 x3 x4 x5 x6 x7 rank > 141 Escambia 2002 6.50 5.95 13.70 20.64 20.49 65.86 100.65 1 > 142 Escambia 1999 7.31 5.33 15.67 18.94 20.99 73.22 100.53 1 > 539 Santa-Rosa 2006 10.70 5.99 11.33 15.34 18.69 57.72 76.03 2 > 540 Santa-Rosa 2007 13.31 5.86 16.15 13.74 29.02 66.80 80.68 2 > 441 Okaloosa 2004 10.45 6.12 12.02 22.42 22.36 63.38 95.30 3 > 442 Okaloosa 2005 8.23 8.53 17.83 12.53 25.44 67.19 83.25 3 > 443 Okaloosa 2006 9.17 4.77 17.88 15.53 20.44 71.56 86.98 3 > 444 Okaloosa 2003 8.83 6.29 9.79 21.43 34.14 65.44 84.88 3 > 621 Walton 1999 3.64 11.84 5.21 22.87 23.70 43.46 71.26 4 > 622 Walton 2000 0.00 5.91 2.47 4.97 7.05 46.11 75.41 4 > 623 Walton 2001 5.89 6.18 4.61 13.75 20.19 49.38 46.44 4 > 271 Holmes 2001 12.62 5.18 14.89 15.28 9.10 66.61 74.57 5 > 272 Holmes 2002 0.00 3.88 5.03 14.53 23.90 64.91 122.85 5 > 636 Washington 2004 0.00 6.53 16.70 7.78 17.23 48.77 53.22 6 > > Thanks, > Johnny Liseth > Graduate Student in Statistics > University of West Florida