clear;

fnameM = ['./dat/productM.txt'];
fnameL = ['./dat/productL.txt'];
datM= dlmread(fnameM, ' ');
datL= dlmread(fnameL, ' ');

figure(1);


semilogy(datM(:,1), datM(:,2), '-ro');
hold on;
semilogy(datL(:,1), datL(:,2), '-bs');
hold off