Perfect, thanks! On Nov 7, 2010, at 4:59 AM, baptiste auguie wrote:
> Hi, > > try this, > > xyplot(Time~Chromosome|factor(Elements), > data = mtx[order(mtx$Chromosome), ], ... [snipped]) > > > HTH, > > baptiste > > > > > > On 7 November 2010 13:17, Alex Reynolds <reyno...@u.washington.edu> wrote: >> I have the following xyplot figure: >> >> http://img577.imageshack.us/img577/686/filesizeresults12000000.png >> >> The data are organized in a matrix file as follows: >> >> Type Elements Chromosome Time >> bedGz 12000000 chr1 14.240 >> bedGz 12000000 chr2 7.949 >> bedGz 12000000 chr3 5.103 >> bedGz 12000000 chr4 5.290 >> bedGz 12000000 chr5 5.161 >> ... >> >> The x-axis labels in the Chromosome column are ordered lexicographically in >> my figure ( chr1 > chr10 > chr11 > ... ) — this is correct. >> >> However, the code I use to draw lines between points in the xyplot connects >> points in numerical order ( chr1 > chr2 > ... ) — this is incorrect. >> >> The problem this causes is most evident in the line that is drawn for the >> blue "bedGz" category. >> >> What I would like is that categorical points are joined by lines in >> lexicographic order, to match ordering of labels on the x-axis. >> >> How do I modify the xyplot command so that the lines are joined in correct >> order? >> >> Here is the code I am using to draw my xyplot: >> >> mtx <- read.table(mtxf.in, as.is=F, sep="\t", quote='', header=T, >> stringsAsFactors=T) >> attach(mtx) >> postscript(mtxf.ps, >> width = 12, >> height = 6, >> paper = 'special', >> horizontal = F) >> par(mar=c(0.0, 0.0, 0.0, 0.0)) >> mtx.p <- xyplot(Time~Chromosome|factor(Elements), >> mtx, >> type="o", >> groups=Type, >> col = c( >> 'red', >> 'green', >> 'red', >> 'green', >> 'blue'), >> auto.key=list( >> lines=TRUE, >> space="right"), >> ylab="CPU Time (sec)", >> xlab="Type", >> main="Extraction time for archive types") >> print(mtx.p) >> dev.off() >> >> Sorry if this is a dumb question. Thanks for your advice. >> >> Regards, >> Alex >> ______________________________________________ >> 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.