On Wed, Aug 21, 2013 at 5:56 PM, Prof J C Nash (U30A) <nas...@uottawa.ca> wrote: > There are several items on the web about putting month names as tick labels > on x axis of time plots, but I found when I tried them they did not work for > me. After an hour or so of driving myself silly looking for a bug in my > code, I've prepared a reproducible example below, where I did find a > workaround, but would prefer to be able to plot a ts object. > > Perhaps someone can spot the error in this. I'm sure it's something silly > or fumble-fingered. > > JN > > yy<-rnorm(28, 5, 1) > yy > yt<-ts(yy, frequency=12, start=c(2011, 1)) > yt > plot(yt, xaxt="n", xlab="month") > axis(1, at=1:28, label=month.abb) # fails 28 != 12 > axis(1, at=1:12, label=month.abb) # fails -- no axis labels > X11() > tt<-1:28 > plot(tt, yy, type='l', xaxt="n") > axis(1, at=1:12, label=month.abb) # too short on axis > axis(1, at=1:28, label=month.abb) # fails 28 != 12 > months<-c(month.abb, month.abb, month.abb[1:4]) > length(months) > axis(1, at=1:28, label=months) # works! But why not the others? >
In the zoo package see the example in ?plot.zoo labelled ## plot a mulitple ts series with nice x-axis using panel function -- Statistics & Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.com ______________________________________________ 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.
