MATLAB: The value assigned to variable ‘total’ might be unused

Question

function ret = Mean(Set)

total = 0;

for i = 1:length(Set)

total += Set(i);

end

ret = total / length(Set);

end

Answer 1

This line is not a valid Matlab syntax

total += Set(i);

You need to change it to:

total = total + Set(i);