The legend show different sign

Question

K 2012-11-29

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/55155-the-legend-show-different-sign

Hello, I try to plot my graph and also do the legend. However, the legend show a different type of symbol. The example of my code is as below. However when I run my simulation, both current and voltage have symbol ro.

figure(1) hold on

for ii=1:N voltage... resistance.. .. xx(ii) = ii; plot(ii,voltage, 'ro'); end

plot(xx,current, 'rx'); legend('voltage','current',2);

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Arthur 2012-11-29

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/55155-the-legend-show-different-sign#answer_66934

This is because you are plotting data in a loop, and will make N plots with symbol 'ro'. Therefore, also the first N entries in the legend will have 'ro'.

You can fix this by collecting all voltage data in one array, and create a single plot. If that is not possible due to the structure of the data, you can set the handleVisibility to 'off' for all voltage plots with ii > 1. This means they will be skipped in the legend.