Re: [R-sig-Geo] World map in magnetic coordinates

Why not plot data and map in original coordinates and then overlay with grid lines showing magnetic coordinates? -- Clint BowmanINTERNET: cl...@ecy.wa.gov Air Quality Modeler INTERNET: cl...@math.utah.edu Department of Ecology VOICE

Re: [R-sig-Geo] selection a right number in a sequance for a RS filter sampling

If I understand the sequence, you want the odd columns from the odd rows and the even columns from the even rows to "a" and the remainder go to "b". Once you have a transposed matrix, the recipe looks straightforward. Clint -- Clint BowmanINTERNET:

Re: [R-sig-Geo] Spatial Interpolation of Regularly Gridded Data

termine an appropriate interpolation method. Clint Clint BowmanINTERNET: cl...@ecy.wa.gov Air Dispersion Modeler INTERNET: cl...@math.utah.edu Air Quality Program VOICE: (360) 407-6815 Department of Ecology FAX:

Re: [R-sig-Geo] R: Inverse distance weighting

deled values. The US EPA has a program, BenMAP, (Benefits MAPping) that can help with the process. Or you can use RSAGA as Alessandro suggested. Clint Clint BowmanINTERNET: cl...@ecy.wa.gov Air Dispersion Modeler INTERNET: cl...@math.utah.edu Air Qu