Try this:
figure
hl = plot((0:9), rand(1,10));
hl.Color = [0 0.4470 0.7410]; % Define Line Color
hl.LineStyle = '-'; % Define Line Style
hl.Marker = 's'; % Define ‘square’ Marker
hl.MarkerFaceColor = 'g'; % Define ‘square’ Marker Color
Use the structure syntax to change the line and marker parameters after the line is plotted.
