Wave Covariance Model / Cardinal Sine
RMwave is a stationary isotropic covariance model, which is valid only for dimensions
d ≤ 3.
The corresponding covariance function only depends on the distance r ≥ 0 between
two points and is given by
C(r)=sin(r)/r 1_{r>0} + 1_{r=0} .
It is a special case of RMbessel.
RMwave(var, scale, Aniso, proj) RMcardinalsine(var, scale, Aniso, proj)
var,scale,Aniso,proj |
optional arguments; same meaning for any
|
The model is only valid for dimensions d ≤ 3. It is a
special case of RMbessel for ν = 0.5.
This covariance models a hole effect (cf. Chiles, J.-P. and Delfiner, P. (1999), p. 92).
Martin Schlather, schlather@math.uni-mannheim.de, https://www.wim.uni-mannheim.de/schlather/
Chiles, J.-P. and Delfiner, P. (1999) Geostatistics. Modeling Spatial Uncertainty. New York: Wiley.
RFoptions(seed=0) ## *ANY* simulation will have the random seed 0; set ## RFoptions(seed=NA) to make them all random again model <- RMwave(scale=0.1) x <- seq(0, 10, 0.02) plot(model) plot(RFsimulate(model, x=x))
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