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annotate toolboxes/FullBNT-1.0.7/bnt/CPDs/@tabular_CPD/Old/update_params.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 CPD = update_params(CPD, ev, counts)
wolffd@0 2 % UPDATE_PARAMS Update the Dirichlet pseudo counts and compute the new MAP param estimates (tabular)
wolffd@0 3 %
wolffd@0 4 % CPD = update_params(CPD, ev) uses the evidence on the family from a single case.
wolffd@0 5 %
wolffd@0 6 % CPD = update_params(CPD, [], counts) does a batch update using the specified suff. stats.
wolffd@0 7
wolffd@0 8 if nargin < 3
wolffd@0 9 n = length(ev);
wolffd@0 10 data = cat(1, ev{:}); % convert to a vector of scalars
wolffd@0 11 counts = compute_counts(data(:)', 1:n, mysize(CPD.CPT));
wolffd@0 12 end
wolffd@0 13
wolffd@0 14 CPD.prior = CPD.prior + counts;
wolffd@0 15 CPD.CPT = mk_stochastic(CPD.prior);