MATLAB: Saving figure in jpeg

Question

I am trying to save figure in jpeg format and find myself having to create them full screen to get good rendering. However, I cannot control both figure number and position. How do I get around this restriction? The relevant code lines are shown below.

Thanks,

scrsz = get(0,'ScreenSize');
figure(1,'Position',[1 1 scrsz(3) scrsz(4)]);   % generate figure 1 full screen size

Answer 1

scrsz = get(0,'ScreenSize');
fig = figure(1);
set(fig,'Units','Pixels','Position',[1 1 scrsz(3) scrsz(4)]);