The spherical model and the exponential are very frequent in many cases, but that is not necessary. For example in continuous files is useful more continuous model as gaussian or cubic (do not forget to put nugget effect in this case!). Only in very specific case are use cardinal sine Linear model is also frequent in geostatistics
Adrian Martínez Vargas1 ISMM, las coloradas s/n Moa, Holguín, Cuba. -----Original Message----- From: Rajni Gaur <[EMAIL PROTECTED]> To: AI Geostats mailing list <ai-geostats@unil.ch> Date: Mon, 19 Dec 2005 16:58:42 +0100 Subject: [ai-geostats] Variogram > Dear List members, > I have a querry for the variogram calculations and modelling. > Generally for the hydrological data sets specially hydraulic head, > transmissivity, etc we fit a spherical model. Why, we prefer spherical > model and not other models? > Thanks in advance to all of you > Regards > Rajni > > ____________________________________________________________________________________________ Participe en el V Congreso Internacional de Educación Superior "Universidad 2006". La Habana, Cuba, del 13 al 17 de Febrero del 2006 http://www.universidad2006.cu _____________________________________ Instituto Superior Minero Metalúrgico de Moa Dr. Antonio Núñez Jiménez http://www.ismm.edu.cu
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