Greetings All, Firstly - thanks for previous answers on exporting to asciigrid!
Now i have a matrix (grid) of temperature, and a lookup table of temperature and svp. I would like to create a new matrix with corresponding svp values. This is relatively straightforward in a GIS - but i have not found a way in R. Ideally it would also interpolate between values in the lookup table. Options like merge, cbind, may work?? Without looping would be ideal. any ideas? thanks! Ian # test matrix mat = matrix(-49.5:50,10,10) # test lookup table temp = -10:9 svp = 1:20 tab = data.frame(temp,svp) ___________________________________________ Ian McCallum Forestry Program International Institute for Applied Systems Analysis Schlossplatz 1, A-2361 Laxenburg, Austria Phone: +43 2236 807-328 Fax: +43 2236 807-599 or 71313 E-mail: mccal...@iiasa.ac.at Web: http://www.iiasa.ac.at/Research/FOR/ ___________________________________________ [[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
