Mehdi Zarrei <gagzar...@yahoo.com> [Sun, Oct 10, 2010 at 06:11:23AM CEST]: > > > > > > > > > > > Hello, > > > > I have a series of coordinates > (latitudes and longitudes) each one/several associated to a code > (from 1 to 28). I used function points (latitude, longitudes) to > transfer them to a per-prepared map. > > > > > 1- I wonder how I might be able to > automatically add codes (1-28) to the map too?
Type ?text at the R prompt. > > 2-Moreover, mostly there are a few > codes from the identical coordinates. What is the function to avoid > overlapping of codes on the map? > jitter() adds some noise, I don't know of this is sufficient for you. > > 3- I want to draw closed line around > some geographical areas to define the habitats. If you search for "convex hull" in rseek.org, you may find something relevant for you. I did this and the third result was http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=61 -- Johannes Hüsing There is something fascinating about science. One gets such wholesale returns of conjecture mailto:johan...@huesing.name from such a trifling investment of fact. http://derwisch.wikidot.com (Mark Twain, "Life on the Mississippi") ______________________________________________ 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.
