Alaios, > Do you know how I can have not fixed resolution in a RasterLayer?
That is not directly possible. Perhaps you can have a set of RasterLayers at different resolutions; and then for a given area (grid cell at the lowest resolution) use the values of the RasterLayer that has non-NA values; or devise some other scheme like that. Can't help you with the geoR question. Robert On Mon, Aug 2, 2010 at 3:25 AM, Alaios <ala...@yahoo.com> wrote: > Hello. > I am pretty new to R and to geoR as well. > > > A) I would like to implement an area of X*X km that would be used to > "Simulate" an > > area map (eg. city's area, suburban area). > > -X would be a parameter so I do not want it to be fixed > -In this map I would like to place users (people), thus I do not know in > advance > > if in one place there would be one,two, or more users.. > -I would also like to not have fixed resolution in my map and specify it as a > parameter during run-time. In my X*X area I would like sometimes to have > resolution of 1Km and others resolution of 10 meters. As resolution increases > (1 > > km->100m->10m) less users would be found in the same "place". > > Do you know how I can have not fixed resolution in a RasterLayer? > > > > B)I also need some help regarding grf() > > According to the geoR short manual grf() takes the following arguments > > > > * n number of points (spatial locations) in each simulations. > * grid optional. An n в 2 matrix with coordinates of the simulated data. > * nx optional. Number of points in the X direction. > * ny optional. Number of points in the Y direction. > > What I want to create is a matrix (at least this is a matlab in matrix) that > contains values created from grf(). The array is of dimensions x*y so the > grf() > needs to create a x*y map. > > If you see the parameters again you will notice that there is a n (n number of > points) and nx and ny also. > > If I put nx=400 and ny=200 (this is just an example) the grf() will return > values for 400 cells (for some reason picks the highest values of nx and ny). > If > I try something like n=x*y I get the message that the RandomField package must > be used. Really do you what the parameter n is about (number of points))? > > I would like to thank you in advance for your help > > Best Regards > Alex. > > > > [[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 > > _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo