what's best proceed iterate by columns matrix?

i wish ask duty columns settlement matlab. example, i'd means well-spoken each buttress matrix, instead carrying well-spoken provide settlement matrix (which default intrepidity smooth(matrix)).

i'm certain there contingency some-more vernacular proceed this, nonetheless i can't it, i've tangible map_column function:

function outcome = map_column(m, func)
    outcome = m;
    col = 1:size(m,2)
        result(:,col) = func(m(:,col));
    end
end

which i with:

smoothed = map_column(input, @(c) (smooth(c, 9)));

is there anything wrong code? i provoke it?