MATLAB: Converting elements which repeat more than 10 times to 0

Question

Hi there, I have an array (4048×1) full of 1s and -1s. I want change it so that, if there are more than 10 consecutive 1s or 10 consecutive -1s, then the rest of the consecutive elements after the 10 will become 0 (zeros).

Ie, if we have 1 -1 1 1 -1 -1 1 1 1 1 1 1 1 1 1 1 1 1 -1 1 -1 1

we would want 1 -1 1 1 -1 -1 1 1 1 1 1 1 1 1 1 1 0 0 -1 1 -1 1

Thanks

Answer 1

I would love to see a vectorized way to do this, but using a loop:

 x=[1 -1 1 1 -1 -1 1 1 1 1 1 1 1 1 1 1 1 1 -1 1 -1 1];
 zeroX = false(size(x));
 for i =11:numel(x)
    xsum = sum(x(i-10:i));
    if xsum>10 || xsum <-10
        zeroX(i) = true;
    end
 end
 x(zeroX) = 0