This example shows how to create a graph with a stem plot and two line plots.
Create a stem plot.
x = linspace(0,2*pi,60); a = sin(x); b = cos(x); stem(x,a+b)
Overlay the stem plot with two line plots. Prevent new plots from replacing existing plots by using
hold on plot(x,a) plot(x,b) hold off
Add a legend to the graph using the
legend function. Specify the legend descriptions in the order you create the plots. Label the axis and add a title to the graph.
legend('a+b','a = sin(x)','b = cos(x)') xlabel('Time in \musecs') ylabel('Magnitude') title('Linear Combination of Two Functions')