Mathieu, The syrjala test http://rgm2.lab.nig.ac.jp/RGM2/func.php?rd_id=ecespa:syrjala is, like other statistical tests, designed to estimate differences between populations from samples. I do not think such tests are relevant in this case as you do not have samples, you have the entire populations. Any difference you find is therefore not an estimate, it is exactly what it is (p=0 if you like). I think the question to ask in these cases is, how much, and where, and how systematic, are the differences, and if the differences are relevant for you (for your application).
Robert On Tue, Nov 29, 2011 at 7:09 AM, Mathieu Rajerison < [email protected]> wrote: > Hi List, > > > The GDEM ASTER SRTM V2 has been released not a long time ago. > > I'd like to test whether it would be convenient to derive Terrain > Attributes from this Digital Elevation Model in a denoised version. > > To do that, I thought of comparing a reference paying digital terrain model > from the French National Institute of Geography with this denoised GDEM. > > I thought of performing a syrjala test on these two data sources. Would you > suggest other methods? > > > Thanks, > > Mathieu > > [[alternative HTML version deleted]] > > _______________________________________________ > R-sig-Geo mailing list > [email protected] > https://stat.ethz.ch/mailman/listinfo/r-sig-geo > [[alternative HTML version deleted]] _______________________________________________ R-sig-Geo mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-geo
