Good Morning: I need to construct a set of Thiessen Polygons centered around approximately 4500 longlat positions in the US. After searching the R site, I was going to attempt to use the arealsubPolygons function in the hydrosanity package. I am using a Windows system. When attempting to call the package I get the following error messages under both R2.8.1 and R2.9.0. ################################################################## > require(hydrosanity) Loading required package: hydrosanity Loading required package: playwith Loading required package: lattice Loading required package: cairoDevice Error in inDL(x, as.logical(local), as.logical(now), ...) : unable to load shared library 'C:/PROGRA~1/R/R-28~1.1/library/cairoDevice/libs/cairoDevice.dll': LoadLibrary failure: The specified module could not be found.
Error: package 'cairoDevice' could not be loaded ################################################################### I have tried downloading the package and it's dependencies from several locations and get the same errors each time. Any suggestions with respect to this package or others that I might use to construct my polygons would be appreciated. I need a set of polygons that cover the entire US county polygon. Joe **************Cooking Dinner For Two? Sign Up & Get Immediate Member-Only Savings. (http://pr.atwola.com/promoclk/100126575x1222652750x1201460983/aol?redir=http:%2F%2Fad.doubleclick.net%2Fclk%3B215225797%3B37274671%3Bq%3Fhttp:%2 F%2Frecipes.cookingfor2.pillsbury.com%2F%3FESRC%3D934) [[alternative HTML version deleted]] _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo
