You may find the my.symbols and ms.arrows functions in the TeachingDemos package useful.
-- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare [email protected] 801.408.8111 > -----Original Message----- > From: [email protected] [mailto:r-sig-geo- > [email protected]] On Behalf Of Sam Veloz > Sent: Sunday, November 29, 2009 3:32 PM > To: [email protected] > Subject: [R-sig-Geo] plotting vector of direction magnitude > > I have a file of points with x/y coordinates and columns for bearing > and > distance. I would like to make a plot where each point is depicted by > an > arrow and the direction the arrow points is based on the value of > bearing and the length of the arrow is based on the value of distance. > Any suggestions on how to do this would be greatly appreciated. > Thanks, > Sam > > -- > **************************************************** > Sam Veloz > Postdoctoral Researcher > Department of Environmental Science and Policy > University of California, Davis > [email protected] > > _______________________________________________ > R-sig-Geo mailing list > [email protected] > https://stat.ethz.ch/mailman/listinfo/r-sig-geo _______________________________________________ R-sig-Geo mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-geo
