computeGradtruncSpatial: computeGradtruncSpatial function

In bentaylor1/lgcp: Log-Gaussian Cox Process

Description

Advanced use only. A function to compute a gradient truncation parameter for 'spatial only' MALA via simulation. The function requires an FFT 'grid' to be pre-computed, see fftgrid.

Usage

computeGradtruncSpatial(nsims = 100, scale = 1, nis, mu, rootQeigs,
  invrootQeigs, scaleconst, spatial, cellarea)

Arguments

nsims	The number of simulations to use in computation of gradient truncation.
scale	multiplicative scaling constant, returned value is scale (times) max(gradient over simulations). Default scale is 1.
nis	cell counts on the extended grid
mu	parameter of latent field, mu
rootQeigs	root of eigenvalues of precision matrix of latent field
invrootQeigs	reciprocal root of eigenvalues of precision matrix of latent field
scaleconst	expected number of cases, or ML estimate of this quantity
spatial	spatial at risk interpolated onto grid of requisite size
cellarea	cell area

Value

gradient truncation parameter

See Also

fftgrid

bentaylor1/lgcp documentation built on May 12, 2019, 2:09 p.m.