set data point color based on y value

I am trying to get the data on a plot colored. I would prefer to set the color but dont know how to set color for a range of data. I guess I could either plot point by point and check the y value and change color accordingly or just graph it all then set the color. Ultimately I would like to graph values less than one in red, values of 1.0-1.08 in green and values over 1.08 in yellow.

pctTarget = coilData(:,17);

plot(pctTarget,'g');

hold on

plot(pctTarget(1:66),'r');

plot(pctTarget(766:4775),'Color','y');

axis([1,4775,0.5,1.5])

hold off

Thanks, Bob