need help find the sum of the vector by the function

find the sum of the vector by the function

[Cris LaPierre]

Is this related to your earlier question?

Answer 1

[Johannes Hougaard]

Under the assumption that only one instance of the minimum grade should be replaced, and that the minimum grade should be included in the average:

function total = grades(v)
    [~,idx] = min(v);
    v(idx) = mean(v); % given that the minimum grade should be part of the calculated average
    total = sum(v);
end

If all instances (e.g. both sixes in v = [12 6 6 10 13]) should be replaced

function total = grades(v)
    exclude = v == min(v);
    v(exclude) = mean(v); % or v(exclude) = mean(v(~exclude)) if minimum should be excluded from calculation;
    total = sum(v);
end