Hi Dave, Thanks for your reply. I can't reproduce the last line of code your code. The ifelse argument throws back an error saying it was not used.
A On Fri, Feb 1, 2013 at 10:56 PM, David Winsemius <dwinsem...@comcast.net>wrote: > > On Feb 1, 2013, at 9:30 AM, Alfredo Tello wrote: > > Hi Folks! >> >> I have a question regarding an issue on which I´ve read a few threads but >> can´t resolve --> Labelling every other tick mark on the x-axis using >> factors. Here´s an example: >> >> Why not: > > db<-data.frame(date=as.factor(**c(1:50)),var=rnorm(50)) > barplot(db$var,names.arg=**ifelse( rep( c(TRUE,FALSE), > length=length(levels(db$date) ) ), levels(db$date), > ""),las=2,cex.axis=0.8,cex=0.**8) > > barplot(db$var,names.arg=**ifelse( c(TRUE,FALSE), levels(db$date), > ""},las=2,cex.axis=0.8,cex=0.**8) > > > -- David. > >> This labels all the tickmarks in my barplot, which is the default >> behavior. >> I would like to label every other tick mark in the barplot --> >> 1,3,5,7 and so on. >> >> Thank you very much for your help! >> >> >> All the best, >> >> A >> >> -- >> Alfredo Tello (http://alfredotello.com) >> Sustainable Aquaculture Group >> Institute of Aquaculture >> University of Stirling >> Scotland, UK. >> >> [[alternative HTML version deleted]] >> >> ______________________________**________________ >> R-help@r-project.org mailing list >> https://stat.ethz.ch/mailman/**listinfo/r-help<https://stat.ethz.ch/mailman/listinfo/r-help> >> PLEASE do read the posting guide http://www.R-project.org/** >> posting-guide.html <http://www.R-project.org/posting-guide.html> >> and provide commented, minimal, self-contained, reproducible code. >> > > David Winsemius, MD > Alameda, CA, USA > > -- Alfredo Tello (http://alfredotello.com) Sustainable Aquaculture Group Institute of Aquaculture University of Stirling Scotland, UK. [[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.
