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annotate toolboxes/FullBNT-1.0.7/bnt/general/shrink_obs_dims_in_gaussian.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 marg2 = shrink_obs_dims_in_gaussian(marg1, dom, evidence, ns)
wolffd@0 2 % SHRINK_OBS_DIMS_IN_GAUSSIAN Remove observed dimensions from mu/Sigma
wolffd@0 3 % function marg2 = shrink_obs_dims_in_gaussian(marg1, dom, evidence, ns)
wolffd@0 4
wolffd@0 5 % This is used by loopy
wolffd@0 6
wolffd@0 7 hdom = dom(isemptycell(evidence(dom)));
wolffd@0 8 ndx = find_equiv_posns(hdom, dom);
wolffd@0 9 b = block(ndx, ns(dom));
wolffd@0 10 marg2.mu = marg1.mu(b);
wolffd@0 11 marg2.Sigma = marg1.Sigma(b,b);
wolffd@0 12 marg2.domain = marg1.domain;