annotate toolboxes/FullBNT-1.0.7/bnt/potentials/@upot/marginalize_pot.m @ 0:cc4b1211e677 tip

initial commit to HG from Changeset: 646 (e263d8a21543) added further path and more save "camirversion.m"
author Daniel Wolff
date Fri, 19 Aug 2016 13:07:06 +0200
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Daniel@0 1 function smallpot = marginalize_pot(bigpot, onto, maximize)
Daniel@0 2 % MARGINALIZE_POT Marginalize a upot onto a smaller domain.
Daniel@0 3 % smallpot = marginalize_pot(bigpot, onto, maximize)
Daniel@0 4 %
Daniel@0 5 % The maximize argument is ignored
Daniel@0 6
Daniel@0 7 numer = marg_table(bigpot.p .* bigpot.u, bigpot.domain, bigpot.sizes, onto);
Daniel@0 8 denom = marg_table(bigpot.p, bigpot.domain, bigpot.sizes, onto);
Daniel@0 9
Daniel@0 10 p = denom;
Daniel@0 11 % replace 0s by 1s before dividing. This is valid since demon(i) = 0 => numer(i) = 0
Daniel@0 12 denom = denom + (denom == 0);
Daniel@0 13 u = numer ./ denom;
Daniel@0 14
Daniel@0 15 ns = zeros(1, max(bigpot.domain));
Daniel@0 16 ns(bigpot.domain) = bigpot.sizes;
Daniel@0 17
Daniel@0 18 smallpot = upot(onto, ns(onto), p, u);