prettyplot

PRETTYPLOT works just like PLOT, but avoids the line and markers being on top of each other. Instead, the line joins the markers without touching them.

Example
figure('position',[200,200,800,600])
hold on
set(gca,'xlim',[-3.2,3.2],'ylim',[-3,3])
x = -pi:pi/10:pi;
y = tan(sin(x)) - sin(tan(x));
h = prettyplot(x,y,'-+b',x,2*cos(x),'-xr','LineWidth',2,'MarkerSize',8);
h = [h;prettyplot(x,randn(size(x)),'-o','LineWidth',1,'MarkerSize',6,'color',[0,0.8,0])];
legend(h(1:2:end),'demo','cos','randn');