annotate toolboxes/FullBNT-1.0.7/KPMtools/sort_evec.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 [evec, evals] = sort_evec(temp_evec, temp_evals, N)
Daniel@0 2
Daniel@0 3 if ~isvectorBNT(temp_evals)
Daniel@0 4 temp_evals = diag(temp_evals);
Daniel@0 5 end
Daniel@0 6
Daniel@0 7 % Eigenvalues nearly always returned in descending order, but just
Daniel@0 8 % to make sure.....
Daniel@0 9 [evals perm] = sort(-temp_evals);
Daniel@0 10 evals = -evals(1:N);
Daniel@0 11 if evals == temp_evals(1:N)
Daniel@0 12 % Originals were in order
Daniel@0 13 evec = temp_evec(:, 1:N);
Daniel@0 14 return
Daniel@0 15 else
Daniel@0 16 fprintf('sorting evec\n');
Daniel@0 17 % Need to reorder the eigenvectors
Daniel@0 18 for i=1:N
Daniel@0 19 evec(:,i) = temp_evec(:,perm(i));
Daniel@0 20 end
Daniel@0 21 end
Daniel@0 22