Mercurial > hg > camir-ismir2012
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 |
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date | Fri, 19 Aug 2016 13:07:06 +0200 |
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children |
rev | line source |
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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 |