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RandomFields (version 3.0.10)

RMeaxxa: Special models for rotation like fields

Description

RMeaxxa and RMetaxxa define the auxiliary functions $$f(h) = h^\top A A^\top h + diag(E)$$ and $$f(h) = h^\top A R R A^\top h + diag(E)$$, respectively.

Usage

RMeaxxa(E, A) 
RMetaxxa(E, A, alpha)

Arguments

E
m-variate vector of positive values
A
$m\times k$ matrix
alpha
angle for the rotation matrix $R$

Value

Details

RMeaxxa is defined in space and returns an m-variate model.

RMetaxxa is a space-time model with two spatial dimensions. The matrix R is a rotation matrix with angle $\beta t$ where $t$ is the time component.

References

  • Schlather, M. (2010) On some covariance models based on normal scale mixtures.Bernoulli,16, 780-797.

See Also

RMmodel, S10

Examples

Run this code
# see S10
RFoptions(seed=NA)

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