| RMnonstwm {RandomFields} | R Documentation |
RMnonstwm is a covariance model whose corresponding
covariance C is given by
C(x, y)=Γ(μ) Γ(ν(x))^{-1/2} Γ(ν(y))^{-1/2} W_{μ} (|x-y|)
where μ = [ν(x) + ν(y)]/2 and W_{μ} is the
covariance of the RMwhittle model and
ν is a positive function or a constant.
RMnonstwm(nu, var, scale, Aniso, proj)
nu |
positive argument defining the smoothness of the random
field, or it is an arbitrary |
var,scale,Aniso,proj |
optional arguments; same meaning for any
|
RMnonstwm returns an object of class RMmodel
Martin Schlather, schlather@math.uni-mannheim.de
Stein, M. (2005) Nonstationary Spatial Covariance Functions. Tech. Rep., 2005
RMwhittle,
RMmodel,
RFsimulate,
RFfit.
RFoptions(seed=0) ## *ANY* simulation will have the random seed 0; set ## RFoptions(seed=NA) to make them all random again