The answer to your question probably lies in your data. If you follow the instructions at the footer of every email on this list and provide an example that we can run (reproducible), we will be able to do more than guess.
http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example In particular note the recommendation to use the dput function to send us sample data. --------------------------------------------------------------------------- Jeff Newmiller The ..... ..... Go Live... DCN:<jdnew...@dcn.davis.ca.us> Basics: ##.#. ##.#. Live Go... Live: OO#.. Dead: OO#.. Playing Research Engineer (Solar/Batteries O.O#. #.O#. with /Software/Embedded Controllers) .OO#. .OO#. rocks...1k --------------------------------------------------------------------------- Sent from my phone. Please excuse my brevity. Hermann Norpois <hnorp...@googlemail.com> wrote: >Hello, > >I have a list with gene names, fold changes (=expression level) and >chromosomes. > >Names fold change chromosome >hz 1.5 2 > > >If I plot fold change versus chromosome (or vice versa): > >plot (ch, fc) > >I see only the chromosomes with numbers but not those with letter (x >and >y). What can I do? > >A second question: >How can I add a single line in that plot at a certain y-level. > >Thanks >Hermann > > [[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.