Forget about two separate plots overlaid on each other. You are far better off using the lines function I expect.
To obtain the centres of the bars for plotting, you need to record the output of the barplot as a variable and use that in your line graph. Try the following code: midpts <- barplot(c(10,12,18)) lines(midpts,c(0,2,3), t="l") This will make your barplot, save the centres of the bars to a variable called "midpts", and then plot a line over those bars. I hope this helps. Samuel Dennis 2010/1/8 Mister Vanhalen <mistervanha...@gmail.com>: > Hello, > > I would like to plot : > > barplot(c(10,12,18)) > > and > > plot(c(0,2,3), t="l") > > and many other plots... > > in a same scale. With par(new=T) it's not align, points are not in the > middle of the bar of barplot. Is there an easely solution to align that ? > > Thank for you help, > > G > > [[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.
