On 02/24/2011 09:40 PM, Anna Gretschel wrote: > Dear List, > > The following formula is given for a spherical model in variofit (geoR). > > /rho(h) = 1 - 1.5 * (h/phi) + 0.5(h/phi)^3 if h < phi , 0 otherwise > > /Could anyone explain what the term "if h<phi, 0 otherwise" means? Which > part of the equation becomes 0 if h>phi?
rho(h) > And shouldn't there be a * between 0.5 and (h/phi)? That would have been consistent, but as this is documentatation, I don't think it is wrong. > Thanks in advance, > Anna > > [[alternative HTML version deleted]] > > _______________________________________________ > R-sig-Geo mailing list > R-sig-Geo@r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-geo -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Weseler Straße 253, 48151 Münster, Germany. Phone: +49 251 8333081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de http://www.52north.org/geostatistics e.pebe...@wwu.de _______________________________________________ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo