[R-sig-Geo] overlay fx, consistent topology, sample a point on a 'patch edge'

NO Dear list-serve, Thanks in advance to all those who help out with the inquiries, it is has helped me numerous times. Here go my questions... I am trying to vary existing landscapes which are composed of habitat (patches) and non-habitat. My goals are to vary the number of patches in a landscap

Re: [R-sig-Geo] cross-validation

Hi, You should check if you have duplicate observations, duplicate observations lead to a singular matrix. Use the function zerodist() to check where the observations are and remove.duplicates() to remove them. cheers, Paul Marta Rufino schreef: > Hello, > > yes, I know it is suppose to do it,

Re: [R-sig-Geo] cross-validation

Hello, yes, I know it is suppose to do it, but I could not find how, because it gives me an error... for example: require(gstat); require(lattice) data(meuse) coordinates(meuse) = ~x + y data(meuse.grid) gridded(meuse.grid) = ~x + y meuse.g <- gstat(id = "zn", formula = log(zinc) ~ 1, data = me

Re: [R-sig-Geo] cross-validation

Yes, Martha; function gstat.cv works on multivariable objects; do read it's documentation. Best regards, -- Edzer Marta Rufino wrote: > Dear list members, > > Is it possible to do cross-validation on multivariate kriging? > i.e. apply krige.cv to multivariate kriging in gstat? > > thank you very

[R-sig-Geo] cross-validation

Dear list members, Is it possible to do cross-validation on multivariate kriging? i.e. apply krige.cv to multivariate kriging in gstat? thank you very much, Best wishes, Marta ___ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/

[R-sig-Geo] BJPS Special Issue on Statistical Image and Signal Processing (fwd)

Brazilian Journal of Probability and Statistics Special Issue on Statistical Image and Signal Processing An image is worth a thousand words, and the information images provide influences the most important decisions we take every instant of our lives. Signals carry information, and our society is

Re: [R-sig-Geo] FYI: Merging GIS and statistics --- RSAGA

Yes, it works with "beep.off=FALSE" , Thank you very much, Ali Santacruz M.Sc. Geomatics. National University of Colombia, Bogota, Colombia E-mail: [EMAIL PROTECTED] > Date: Tue, 5 Feb 2008 16:03:39 +0300> From: [EMAIL PROTECTED]> To: > r-sig-geo@stat.math.ethz.ch> CC: [EMAIL PROTECTED

Re: [R-sig-Geo] subregion of a SpatialGridDataFrame

Hi, Loading the grid and telling R that it is a grid can also be done by: library(gstat) data(meuse.grid) gridded(meuse.grid) =~x+y # Now it is a SPixelDF # The former is shorthand for: # coordinates(meuse.grid) =~x+y # gridded(meuse.grid) = TRUE fullgrid(meuse.grid) = TRUE # Make it a SGridDF c

Re: [R-sig-Geo] subregion of a SpatialGridDataFrame

Ingo Holz wrote: > Hi, > > this sounds like a stupid question, however: > > I have a SpatialGridDataFrame (SGDF) and want to cut a rectangular > subregion from this SGDF to a new sub-region-SGDF. > > Is it possible to define a new bounding-box with two points and cut the > subregion out of the

[R-sig-Geo] subregion of a SpatialGridDataFrame

Hi, this sounds like a stupid question, however: I have a SpatialGridDataFrame (SGDF) and want to cut a rectangular subregion from this SGDF to a new sub-region-SGDF. Is it possible to define a new bounding-box with two points and cut the subregion out of the SGDF? Ingo __