How do I vectorize this code below?

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Emmanuel 2016-10-22

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https://ww2.mathworks.cn/matlabcentral/answers/308607-how-do-i-vectorize-this-code-below

评论： Walter Roberson 2016-10-23

       if(y+1 <= length(B))
         if(sum(ismember(closed(:,1:2),[x,y+1],'rows'))== 0)  
           cost = hMap(x,y)+ B(x,y+1); 
           if(cost< hMap(x,y+1))
             hMap(x,y+1) = cost;
             open = [open;x,y+1,cost]; 
           end
         end
       end

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Matt J 2016-10-22

There are no loops in the code you've shown.

Walter Roberson 2016-10-23

The open = [open;x,y+1,cost]; suggests it is in a loop, but we do not have information about which variable is being iterated over; we also do not have information about what the purpose of the code is.

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