[R-sig-Geo] Wrap around distribution

2014-09-16 Thread Chris Clements
Dear all, I am currently plotting very simple marine species distributions based on presence data using gConvexhull. The species I am working on is large and cosmopolitan, so I would like to be able to plot a distribution that �wraps� around the world, but in a 2d. So it the below example, the

[R-sig-Geo] really slow plot of Portugal

2014-09-16 Thread Agustin Diez Castillo
Hi, I don�t know if this is related with the crisis, but Switzerland works wether Portugal or Spain take forever and even freezes R. Same with spplot. Any clues? # Switzerland library(sp) con - url(http://gadm.org/data/rda/CHE_adm0.RData;) print(load(con)) [1] gadm close(con) plot(gadm)

[R-sig-Geo] (residual) variograms and trend adjustment

2014-09-16 Thread Tim Richter-Heitmann
Hi! I just had a talk with a reviewer of my thesis. He strongly criticized the way i was interpreting variograms without previous trend adjustment. In fact, i am following the route in Applied Spatial Data Analysis with R, chapter 8. On page 218, i think its stated the basic assumption of the

Re: [R-sig-Geo] really slow plot of Portugal

2014-09-16 Thread Jon Skoien
Hi Augustin, I guess this is related to the complexity of the border. Switzerland is defined by some nice lines (although not as simple as some of the borders in Sahara), Portugal and Spain have coastlines which can be rather complex, including their islands. Setting prt = gadm che = gadm