Given three arrays x,z and y:
z = [5,5,7,7,7,11,15,15,29,29,29]
y = [1,2,3,2,1,1,1,1,2,3,1]
x = [5,7,29]
x contains some elements of z uniquely. For these elements, I wanted to count how often each of their appearance in z is accompanied with a "1" for the same index in y. For instance z contains two "5", at index 1 and at index 2, but only index 1 in y is equal to 1, so the result should be "1".
I coded the following, but this gives me completely wrong results:
for i = 1:length(x)
sumElems = sum(z==x(i)&&y==1)