Gneiting Covariance Model Used as Tapering Function
RMgneitingdiff is a stationary isotropic covariance model
which is only valid up to dimension 3.
The corresponding covariance function only depends on the distance
r ≥ 0 between
two points and is given by
C(h) = C_0(h / t) W_ν(h / s)
where C_0 is Gneiting's model RMgneiting
and W_ν is the Whittle model RMwhittle.
RMgneitingdiff(nu, taper.scale, scale, var, Aniso, proj)
The model allows to a certain degree the smooth modelling of the differentiability of a covariance function with compact support.
RMgneitingdiff returns an object of class RMmodel.
Martin Schlather, schlather@math.uni-mannheim.de, https://www.wim.uni-mannheim.de/schlather/
Gneiting, T. (1999) Correlation functions for atmospherical data analysis. Q. J. Roy. Meteor. Soc Part A 125, 2449-2464.
RFoptions(seed=0) ## *ANY* simulation will have the random seed 0; set ## RFoptions(seed=NA) to make them all random again model <- RMgneitingdiff(nu=2, taper.scale=1, scale=0.2) x <- seq(0, 10, 0.02) plot(model) plot(RFsimulate(model, x=x))
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.