How do I overlay two plots upon the same axes?

I'm new to MatLab (so please excuse my language) and am attempting to overlay two line plots of vectors, as coded here (actual vectors a and b are 50 elements long):

a = [1, 2, 3]
b = [1, 3, 2]
compPlot = figure('Name', 'Comparison of stuff');
ax1 = axes('Parent', compPlot);
plot(ax1, a, 'Color', 'blue');
plot(ax1, b, 'Color', 'red');
title(ax1, 'Figure 3: Plot of stuff');

Basically, I'd like the blue and red lines to show up on the same graph. I know I can use a 'hold on' statement to plot them, but I was hoping to do it thru a "figure" statement since that seemed more elegant (and seems to make adjusting options easier and seems to be the more advanced and powerful way to do it).

Is there a way to do it using the plot(ax,...) method?

Thanks, Ben

Answer 1

[Star Strider]

Use the hold function:

a = [1, 2, 3]
b = [1, 3, 2]
compPlot = figure('Name', 'Comparison of stuff');
ax1 = axes('Parent', compPlot);
plot(ax1, a, 'Color', 'blue');
hold on
plot(ax1, b, 'Color', 'red');
hold off
title(ax1, 'Figure 3: Plot of stuff');

[Ben B]

Thanks! My final (simplified) code:

compPlot = figure('Name', 'Comparison of Stuff');
ax1 = axes('Parent', compPlot);
hold(ax1, 'on');
plot(ax1, a, 'Color', 'blue');
plot(ax1, b, 'Color', 'red');
title(ax1, 'Figure 3: Plot of Stuff');
legend('Thing 1','Thing 2');
hold(ax1, 'off');

[Star Strider]

My pleasure!