annotate toolboxes/FullBNT-1.0.7/KPMtools/myunion.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 C = myunion(A,B)
Daniel@0 2 % MYUNION Union of two sets of positive integers (much faster than built-in union)
Daniel@0 3 % C = myunion(A,B)
Daniel@0 4
Daniel@0 5 if isempty(A)
Daniel@0 6 ma = 0;
Daniel@0 7 else
Daniel@0 8 ma = max(A);
Daniel@0 9 end
Daniel@0 10
Daniel@0 11 if isempty(B)
Daniel@0 12 mb = 0;
Daniel@0 13 else
Daniel@0 14 mb = max(B);
Daniel@0 15 end
Daniel@0 16
Daniel@0 17 if ma==0 & mb==0
Daniel@0 18 C = [];
Daniel@0 19 elseif ma==0 & mb>0
Daniel@0 20 C = B;
Daniel@0 21 elseif ma>0 & mb==0
Daniel@0 22 C = A;
Daniel@0 23 else
Daniel@0 24 %bits = sparse(1, max(ma,mb));
Daniel@0 25 bits = zeros(1, max(ma,mb));
Daniel@0 26 bits(A) = 1;
Daniel@0 27 bits(B) = 1;
Daniel@0 28 C = find(bits);
Daniel@0 29 end