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function p = prob_CPT(CPD, x)
% PROB_CPT Lookup the prob. of a family value in a tabular CPD
% p = prob_CPT(CPD, x)
%
% This is a version of prob_CPD optimized for tables.
switch length(x)
case 1, p = CPD.CPT(x);
case 2, p = CPD.CPT(x(1), x(2));
case 3, p = CPD.CPT(x(1), x(2), x(3));
case 4, p = CPD.CPT(x(1), x(2), x(3), x(4));
otherwise,
ind = subv2ind(mysize(CPD.CPT), x);
p = CPD.CPT(ind);
end
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