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sw1 - I0=I0(R0 J0=J0(R0 m=min(m0,m1 I1=I1(1:m J1=J1(1:m...

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function B=sw1(A) [M,N]=size(A); D=hgr(A); [I1,J1]=find( D>.5 ); m1=length(I1); R1=randperm(m1); I1=I1(R1); J1=J1(R1); [I0,J0]=find( D<-.5 ); m0=length(I0); R0=randperm(m0);
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Unformatted text preview: I0=I0(R0); J0=J0(R0); m=min(m0,m1); I1=I1(1:m); J1=J1(1:m); I0=I0(1:m); J0=J0(1:m); w1=sparse(I1,J1,-1,M,N); w0=sparse(I0,J0,1,M,N); B=A+w0+w1;...
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