Description Usage Arguments Value
A function to compute the precision matrix of a GMRF on an M x N toral grid with neighbourhood size ns. Note that the precision matrix is block circulant. The returned function operates on a parameter vector as in Rue and Held (2005) pp 187.
1 |
ns |
neighbourhood size |
M |
number of cells in x direction |
N |
number of cells in y direction |
a function that returns the precision matrix given a parameter vector.
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