figure; 
stem (r47_oxy_0272_ctr(1:846000,1),'fill', 'DisplayName', 'oxy 0272 D 8460ms', 'LineWidth', 0.1 , 'Marker', 'p', 'MarkerSize',4,'Linestyle' , ':'); 
stem (r47_oxy_0272_ctr(1:846000,2),'fill', 'DisplayName', 'r47_oxy_0272 8460ms', 'LineWidth', '0.2' , 'MarkerSize', '2' , 'Linestyle' , '--');
set(h(1), 'Marker', 'p', 'MarkerSize', '4','Linestyle' , ':')
set(h(2), 'MarkerSize', '2' , 'Linestyle' , '--')

figure;
stem (r47_oxy_0272_ctr(1:846000,1), 'DisplayName', 'oxy 0272 D 8460ms', 'Linestyle' , ':');
stem (r47_oxy_0272_ctr(1:846000,2), 'DisplayName', 'oxy 0272 D 8460ms', 'Linestyle' , '--');

h = stem(r47_oxy_0272_ctr(1:846000,1:2), 'DisplayName', 'oxy 0272 D 8460ms', 'fill')
set(h(1),'LineWidth', 0.2 , 'Marker', 'p', 'MarkerSize',4,'Linestyle' , ':')
set(h(1),'LineWidth', 0.1 , 'MarkerSize',4,'Linestyle' , '--')