function Out=normalizzaCol(Matrix)
[righe colonne]=size(Matrix);
sum=0;
Out=zeros(righe,colonne);
for i=1:colonne
    for j=1:righe
        sum=Matrix(j,i)+sum;
    end
    Out(:,i)=Matrix(:,i)/(sum+1e-200);
    sum=0;
end    