Description Usage Arguments Details Value References See Also Examples
Methods relying on square roots of the covariance matrix
1  RPdirect(phi, boxcox)

phi 
object of class 
boxcox 
the one or two parameters of the box cox transformation.
If not given, the globally defined parameters are used.
See 
RPdirect
is based on the wellknown method for simulating
any multivariate Gaussian distribution, using the square root of the
covariance matrix. The method is pretty slow and limited to
about 12000 points, i.e. a 20x20x20 grid in three dimensions.
This implementation can use the Cholesky decomposition and
the singular value decomposition.
It allows for arbitrary points and arbitrary grids.
RPdirect
returns an object of class RMmodel
.
Schlather, M. (1999) An introduction to positive definite functions and to unconditional simulation of random fields. Technical report ST 9910, Dept. of Maths and Statistics, Lancaster University.
Gaussian, RP, RPsequential.
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