MATLAB: How to compute the sum and average of odd numbers by using the loop method

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For example, if I have a vector A. A=[23 44 2 -4 -19 15 1 -70 78] then how can I compute the sum and the average of all the odd numbers by using only the loop method and no built-in functions ?
With the built-in functions I get 20 and 5 for the sum and the average of the odd numbers, but how can I compute that same answer with the loop method.
thanks,

Best Answer

A=[23 44 2 -4 -19 15 1 -70 78];
sum = 0;
N_odds = 0;
for k=1:numel(A)
    if mod(A(k),2)
        sum=sum+A(k);
        N_odds = N_odds + 1;
    end
end
my_average = sum/N_odds;
sum =
    20
my_average =
       5
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