separate codes work, together don't

Question

alexaa1989 2014-8-23

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回答： Matz Johansson Bergström 2014-8-23

hi everyone I have written a code which is part of an algorithm and it is greatly working but when I put the exact same code in the algorithm it causes problem and the error refers to the code I have just put in

here is the code

 ll=1;
        for i=1:sk(1)
            for j=1:sk(2)
                if k(i,j)>0.5
                    k1(i,j)=k(i,j);
                else
                    k1(i,j)=k0(ll);
                    ll=ll+1;
                end
            end
        end

when I put it in the algorithm the ( ll ) counts more than numel(k0) but when I run it separately it works.

what is wrong with it?

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Answer 1

Matz Johansson Bergström 2014-8-23

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I don't know the values of the variables you are using but this seems to work

n  = 5;
k  = rand(n,n);
sk = size(k)
k0 = 1:numel(k) %must be (maximum) the number of elements in k
ll = 1;
for i=1:sk(1)
    for j=1:sk(2)
          if k(i,j)>0.5
              k1(i,j)=k(i,j);
          else
              k1(i,j)=k0(ll);
              ll=ll+1;
          end
      end
  end