wolffd@0: function [pot, loglik] = normalize_pot(pot)
wolffd@0: % NORMALIZE_POT Convert the element of stable conditional gaussian potential Pr(X,E) into Pr(X|E) and return log Pr(E).
wolffd@0: % [pot, loglik] = normalize_pot(pot)
wolffd@0: 
wolffd@0: loglik = log(pot.p);
wolffd@0: pot.p = 1;