Creates a precision matrix Q, with off diagonal entries equal to expb1*x_1ij + ... + bp*x_pij, where beta=(b1,b2,...,bp) is a vector of log-conductance values of the covariates x_kij. Each x_kij is equal to (x_ki+x_kj)/2.
A transition list from TL.from.stack
A vector of log-conductance rates with length equal to the length of TL.
A precision matrix, as a sparse matrix of class 'dgCMatrix', with dimension equal to n^2 by n^2, where n is the number of nodes in the raster stack used to compute TL.
Ephraim M. Hanks
Hanks and Hooten 2013. Circuit theory and model-based inference for landscape connectivity. Journal of the American Statistical Association. 108(501), 22-33.
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