Calculate grid locations for a spectral GP object.

Description

This is a version of expand.grid that calculates the grid locations for a spectral GP object. Gridpoints representing the part of the domain in which the periodicity of the GP emerges are omitted.

Usage

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## S3 method for class 'gp'
expand.gpgrid(object,...)

Arguments

object

A GP object, created by gp.

...

Other arguments.

Details

Note that this function is not named expand.grid.gp because expand.grid is a function, and not an S3 method.

Value

A matrix of grid locations with the first column the x-dimension and the second the y-dimension, or for one dimensional processes, a vector of grid locations.

Author(s)

Christopher Paciorek paciorek@alumni.cmu.edu

References

Type 'citation("spectralGP")' for references.

See Also

gp, getgrid.gp, predict.gp

Examples

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library(spectralGP)
gp1=gp(128,matern.specdens,c(1,4))
gp2=gp(c(64,64),matern.specdens,c(1,4))
grid1=expand.gpgrid(gp1)
grid2=expand.gpgrid(gp2)
plot(grid2)

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