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Is it possible to get rid of the for loop in the following code?

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Iremsu Savas
Iremsu Savas 2018-10-6
评论： Iremsu Savas 2018-10-6
I have a matrix A(52,4) with some values in it and I have another matrix B(52,1) with 1's and 0's in it. I want to control the B matrix and if the B matrix's value is 1 in the following index then I want to make the A matrix's that index full of zeros.With for loop I can do it as it follows but is it possible in matlab to make it in another way and get rid of this for loop?
for a=1:52
if B(a,1)==1
A(a,:)=0
end
end
thank you

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Walter Roberson
Walter Roberson 2018-10-6
A(B(:, 1)==1,:) = 0;
Or
A(logical(B), :) = 0;
If you were to maintain B as logical instead of numeric then just
A(B, :) = 0;

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