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annotate toolboxes/FullBNT-1.0.7/bnt/potentials/@cgpot/enter_discrete_evidence_pot.m @ 0:e9a9cd732c1e tip

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first hg version after svn
author wolffd
date Tue, 10 Feb 2015 15:05:51 +0000
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wolffd@0 1 function pot = enter_discrete_evidence_pot(pot, Y, y)
wolffd@0 2
wolffd@0 3 %ns = sparse(1, max(pot.domain));
wolffd@0 4 ns = zeros(1, max(pot.domain));
wolffd@0 5 ns(pot.ddom) = pot.dsizes;
wolffd@0 6 ns(pot.cdom) = pot.csizes;
wolffd@0 7
wolffd@0 8 ddom = pot.ddom;
wolffd@0 9 S = prod(ns(ddom));
wolffd@0 10 sub = ind2subv(ns(ddom), 1:S);
wolffd@0 11 mask = find_equiv_posns(Y, ddom);
wolffd@0 12 sub(mask) = y;
wolffd@0 13 ndx = subv2ind(ns(ddom), sub);
wolffd@0 14
wolffd@0 15 pot.can = pot.can(ndx);
wolffd@0 16 pot.mom = pot.mom(ndx);