我有两个数据集,我想在同一个图中绘制,例如两个余弦和两个正弦图只是幅度不同:
x = -pi:pi/20:pi;
hold all;
amplitude = 1;
plot(x,amplitude*cos(x),'-');
plot(x,amplitude*sin(x),'-');
ax = gca;
ax.ColorOrderIndex = 1;
amplitude=3;
plot(x,amplitude*cos(x),'.');
plot(x,amplitude*sin(x),'.');
legend('1*cos(x)','1*sin(x)', '2*cos(x)','2*sin(x)');
hold off;
我想"压缩"传说使得两条线条(正常线和虚线)是"合并"并显示在图例中相同的文本条目旁边,例如:
如何在MATLAB中实现这一目标?我目前正在使用R2015b。
答案 0 :(得分:0)
这是我最接近r2015b的快速浏览:
%%
f = figure;
ax = axes;
x = -pi:pi/20:pi;
hold all;
amplitude = 1;
c1 = plot(x,amplitude*cos(x),'-', 'DisplayName', 'cos(x)');
s1 = plot(x,amplitude*sin(x),'-', 'DisplayName', 'sin(x)');
ax.ColorOrderIndex = 1;
amplitude=3;
c2 = plot(x,amplitude*cos(x),'.', 'DisplayName', ' ');
s2 = plot(x,amplitude*sin(x),'.', 'DisplayName', ' ');
lg = legend([c1 c2 s1 s2]);
hold off;
在HG2之前操作传说更容易 - 所以使用旧版本的Matlab(r2013a)我得到:
%%
f = figure;
ax = handle(axes);
x = -pi:pi/20:pi;
hold all;
amplitude = 1;
c1 = plot(x,amplitude*cos(x),'r-', 'DisplayName', 'cos(x)');
s1 = plot(x,amplitude*sin(x),'b-', 'DisplayName', 'sin(x)');
amplitude=3;
c2 = plot(x,amplitude*cos(x),'r.', 'DisplayName', ' ');
s2 = plot(x,amplitude*sin(x),'b.', 'DisplayName', ' ');
lg = handle(legend([c1 c2 s1 s2]));
hold off;
% You need to find which of the children on the legend is
% each of the plots:
c1 = handle(lg.Children(1));
c1.YData = 0.3;
s1 = handle(lg.Children(7));
s1.YData = 0.75;