Dear List, Following the link below ( http://rgm2.lab.nig.ac.jp/RGM2/func.php?rd_id=plotrix:clock24.plot) I got an interesting polar plots which displayed my data and the time of observation. Thank you very much for providing such details.
However, I have two set of data which I wish to display in the same polar plot. I tried using points to add the second data but could not succeed. That is, after the running the first code: clock24.plot(a,b,main="Test Clock24 (lines)",show.grid=FALSE, line.col="green",lwd=3) if(dev.interactive()) par(ask=TRUE) # now do a 'daylight' plot clock24.plot(a,b, main="Test Clock24 daytime (symbols)", point.col="blue",rp.type="s",lwd=3) # reset the margins par(mar=c(5,4,4,2)) I tried to add the second using: points(aa,bb,col="blue") Error in xy.coords(x, y) : (list) object cannot be coerced to type 'double' > points(add = TRUE,a,b,col="blue") Error in xy.coords(x, y) : (list) object cannot be coerced to type 'double' Any further help will be much appreciated. Best regards Ogbos [[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.