annotate toolboxes/distance_learning/mlr/util/distToFrom.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 D = distToFrom(n, Vto, Vfrom, Ito, Ifrom)
Daniel@0 2 Cross = -2 * Vto' * Vfrom;
Daniel@0 3 Tonorm = sum(Vto .^2, 1)';
Daniel@0 4 Fromnorm = sum(Vfrom .^2, 1);
Daniel@0 5
Daniel@0 6 D = zeros(n);
Daniel@0 7 D(Ito,Ifrom) = bsxfun(@plus, bsxfun(@plus, Cross, Tonorm), Fromnorm);
Daniel@0 8 end