www.gusucode.com > graphics 案例源码程序 matlab代码 > graphics/SpecifyChartsToIncludeInLegendExample.m

    %% Specify Charts to Include in Legend
% Plot three lines and return the chart line objects created. Then, create
% a legend that includes only two of the lines by specifying the first
% input argument as a vector of the chart line objects to include.


x = linspace(0,3*pi);
y1 = sin(x);
p1 = plot(x,y1);

hold on
y2 = sin(x - pi/4);
p2 = plot(x,y2);

y3 = sin(x - pi/2);
p3 = plot(x,y3);
hold off

legend([p1 p3],'First','Third')