function pot = enter_cts_evidence_pot(pot, Y, y)% function pot = enter_cts_evidence_pot(pot, Y, y) (cpot)ns = sparse(1, max(pot.domain));ns(pot.domain) = pot.sizes;X = mysetdiff(pot.domain, Y);[hx, hy, KXX, KXY, KYX, KYY] = partition_matrix_vec(pot.h, pot.K, X, Y, ns);pot.g = pot.g + hy'*y - 0.5*y'*KYY*y;if ~isempty(X)  pot.h = hx - KXY*y;  pot.K = KXX;endpot.sizes(find_equiv_posns(Y,pot.domain)) = 0;