Mercurial > hg > mauch-mirex-2010
diff _FullBNT/KPMtools/myintersect.m @ 8:b5b38998ef3b
added all that other stuff
author | matthiasm |
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date | Fri, 11 Apr 2014 15:54:25 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/_FullBNT/KPMtools/myintersect.m Fri Apr 11 15:54:25 2014 +0100 @@ -0,0 +1,28 @@ +function C = myintersect(A,B) +% MYINTERSECT Intersection of two sets of positive integers (much faster than built-in intersect) +% C = myintersect(A,B) + +A = A(:)'; B = B(:)'; + +if isempty(A) + ma = 0; +else + ma = max(A); +end + +if isempty(B) + mb = 0; +else + mb = max(B); +end + +if ma==0 | mb==0 + C = []; +else + %bits = sparse(1, max(ma,mb)); + bits = zeros(1, max(ma,mb)); + bits(A) = 1; + C = B(logical(bits(B))); +end + +%sum( bitget( bitand( cliquesb(i), cliquesb(j) ), 1:52 ) );