Hi, I'd like to plot in in polar coordinates a line which is given as a vector of lengths and angles.
library("plotrix") polar.plot(length=c(1,-13,3,-1),polar.pos=c(20,20,45,55),rp.type="p",line.col="red",lwd=3,clockwise=TRUE,label.pos=seq(30,360,by=30),labels=c("ESE","SSE","S","SSW","WSW","W","WNW","NNW","N","NNE","ENE","E"),radial.lim=c(0,90)) lines(seq(0,285,by=15),rep(c(40,60),times=10),col="blue") My questions: a) Why is the radial.lim=c(0,90) ignored? b) Why is there no red line? c) Why is the blue line not "jumping" between two circles of radius 40 respectively 60 (The first argument of "line" should be the angle, the second the length.)? Or: which function plots in existing polar plots? (Remark the the polygone is not complete, eg going around) My final goal will be such a plot: http://www.mysundial.ca/tsp/images/sun_chart_50_solar_polar.jpg which is the polar-coordinate version of my wikimedia plot http://commons.wikimedia.org/wiki/File:Sonnenstand.png (made in R, see source) Thanks for hints and help, Thomas PS: I asked a close question last year: http://www.mail-archive.com/r-help@r-project.org/msg64998.html ______________________________________________ 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.