Checking a specific element of 4x1 matrix being 1

I am trying this very simple code in which I want to check a particular element of this 4x1 matrix whether it is 1 or not. For some reason the entire code is skipped and not even showing anything.

for i=1:4
    if probFinal(i,1) == 1 
        disp('Equal');
    end
end

Some values of probFinal are [1.00000000000000 ; 0 ; 5.00468046766525e-34 ;0] && [0 ; 1.00000000000000 ; 0 ; 5.00468046766525e-34] and all the permutation including these values only.

Answer 1

[DGM]

More than likely, this is a case of rounding error. Beware strict equality tests with floating point numbers. That 1.000000000 isn't 1. It's approximately 1. You should consider testing against a tolerance:

tol=1E-12
for i=1:4
    if abs(probFinal(i,1)-1)<=tol
        % do things
    end
end

[Das Siddharth]

Thank you so much DGM. I didn't realize this could be it. I thought MATLAB would understand anyway, sigh. I thank you again.