Why variable has only 1 value after completing a cycle?

I have an array A with float numbers and a fixed calculated number M. I`ve tried to write a cycle which would give me every nth element of an array if every (n+1)th element is less than my number M. Here is my code:

for l=find(A);

if l < length(A);

if A(l+1) < M;

X=A(l)

end;

end;

end;

After completing the cycle my variable X has only the first number of all that numbers that it should have. I think that it`s happenning because Matlab stops after finding first sufficient value, but I need it to work through all array. How can I change this code? Thank you for helping)

Answer 1

[Davide Masiello]

You need to index X too.

X(l)

Otherwise the values do not get stored in X, and you see only the last computed value.