Im trying to read sensor value and store 50 diferent measures in real time to do the mode filter in each moment

I have a system created in Simulink in which i want to read 50 sensor values (analog measure) to do mode filter for disturbing measures. My sistem works with a sample time "x" and i want to make a block "Matlab function" that works with a sample time "x/50".

The problem is in the function im trying to do beacuse i dont know the way of tell the function to read the measure 50 times before giving the output. A "for" loop doesnt work beacuse it reads the input and store the same value in all of 50 points of the array[i] and then the output filtered is always the input.