add line to line plot

Hello, I have a basic plotting question, I have two Y-variables, one uses all X-axis values while the other Y-variable uses every other X-value; but I still want it to draw a line. How can I do that?

SOA = -230;-190;-150;-110;-70;NaN;70;110;150;190;230
Long_Y = 2.89;2.40;2.61;2.30;0.16;NaN;0.4000;1.45;2.75;3.18;3.41
Short_Y = 1.61;NaN;1.54;NaN;-0.030;NaN;0.10;NaN;1.75;NaN;1.85

thanks,

[Jan]

Let me gess: SOA is the "X-value"? "Every other" is 1:2:end? What have you tried so far? Did a problem occur?

Answer 1

[Star Strider]

Try this:

figure(1)
plot(SOA, Long_Y, '-pb')
hold on
plot(SOA(1:2:end), Short_Y(1:2:end), '-pr')
hold off
grid