For Loops using functions

Im still new to Matlab so this is confusing me. Im writing a code to that uses a function and has to repeat that function on a input a given number of times, i cant figure out how to use the output of the first loop as the input for the second loop.

Smooth = zeros(1,n);

for i = 1:n

Smooth = SmoothSignalPass(s);

end

Answer 1

[Karim]

if you do not want te keep the data from each iteration you can simply overwrite it i.e. use the same variable as input and output

Smooth = s; % initalize smooth as the original data
for i = 1:n
    Smooth = SmoothSignalPass( Smooth );
end