Re: [R-sig-Geo] Downscaling a raster map

A good solution could be using regression kriging with current altitude map as covariate.  Dr. Francesco Carotenuto (Ph.D.) Department of Earth Sciences Federico II University Largo S. Marcellino 10, 80138 NAPLES (ITALY) https://www.researchgate.net/profile/Francesco_Carotenuto Il Lunedì

Re: [R-sig-Geo] Downscaling a raster map

. Francesco Carotenuto (Ph.D.) Department of Earth Sciences Federico II University Largo S. Marcellino 10, 80138 NAPLES (ITALY) https://www.researchgate.net/profile/Francesco_Carotenuto Il Lunedì 28 Novembre 2016 11:18, Loïc Dutrieux <loic.dutri...@conabio.gob.mx> ha scritto: On

[R-sig-Geo] Downscaling a raster map

Hi everyone,I'm looking for a method to downscale a 250x250 km wide resolution altitudemap of the past (about 3 million years ago) to a finer resolution. I would the spatialstructure of the downscaled map to resemble the actual altitude. Is there a way?Thank you,Francesco. Dr. Francesco

Re: [R-sig-Geo] Strange lines when projecting a world map

Well, when one asks to a master... Then, I can write some lines to automatically select only the regions hosting the data points, keeping out useless territories.Thanks so much for the help and the patience.   Dr. Francesco Carotenuto (Ph.D.) Department of Earth Sciences Federico II University

[R-sig-Geo] Strange lines when projecting a world map

. Francesco Carotenuto (Ph.D.) Department of Earth Sciences Federico II University Largo S. Marcellino 10, 80138 NAPLES (ITALY) http://francesco-carotenuto.blogspot.it/ http://3dpaleontology.blogspot.it/  [[alternative HTML version deleted]] ___ R

Re: [R-sig-Geo] Strange lines when projecting a world map

. Francesco Carotenuto (Ph.D.) Department of Earth Sciences Federico II University Largo S. Marcellino 10, 80138 NAPLES (ITALY) http://francesco-carotenuto.blogspot.it/ http://3dpaleontology.blogspot.it/  Il Giovedì 5 Dicembre 2013 21:23, Roger Bivand roger.biv...@nhh.no ha scritto: On Thu, 5 Dec

Re: [R-sig-Geo] How do I ensure that the polygon in spatstat::owin(poly=polygon) does not have “negative area”

are the coordinates of all points describing the contour lines of mass.map object. You need to use instead the column range that contains the bounding box coordinates. In details : mass.map$range[1:2] # from 1 to 2 for the x range mass.map$range[3:4] # from 3 to 4 for the x range Cheers   Dr. Francesco

Re: [R-sig-Geo] Indicator Kriging in automap

is transformed into a binary one (TRUE/FALSE) and used in the interpolation process. I used a similar procedure with the function “autoKrige” in automap and got the prediction map with no error message. I suppose everything went well Cheers. Dr. Francesco Carotenuto (Ph.D.) Department of Earth

[R-sig-Geo] Indicator Kriging in automap

Dear list, What parameter set allows one to perform automatically Indicator Kriging in automap?   Dr. Francesco Carotenuto (Ph.D.) Department of Earth Sciences Federico II University Largo S. Marcellino 10, 80138 NAPLES (ITALY) http://francesco-carotenuto.blogspot.it/ http

[R-sig-Geo] From ashape to spatial polygon

Hi, is there a way to convert an ashape object (object class of package alphahull) into a spatial polygon? I need only the alpha hull object (the external contour) and not the delaunay triangles. If not, is there a way to simply create a single spatial polygon from a matrix containing xy

[R-sig-Geo] From ashape to spatial polygon

Thanks to everyone! [[alternative HTML version deleted]] ___ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo

Re: [R-sig-Geo] Regression kriging or kriging with external drift

Any suggestions? A: r-sig-geo@r-project.org Inviato: Domenica 30 Giugno 2013 8:34 Oggetto: Regression kriging or kriging with external drift Hi to all. Is there a way to perform regression kriging (kriging with external drift) by using the intamap package?

[R-sig-Geo] Regression kriging or kriging with external drift

Hi to all. Is there a way to perform regression kriging (kriging with external drift) by using the intamap package? If yes, how to set the covariate? Thanks. ___ R-sig-Geo mailing list R-sig-Geo@r-project.org