The legend show different sign

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K
K 2012-11-29
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);

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Arthur
Arthur 2012-11-29
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.
  2 个评论
K
K 2012-11-29
How can I set the handleVisibility to off?
K
K 2012-11-29
Thanks guys for your reply. I use this code plot(ii,voltage, 'ro', ''HandleVisibility', 'off');

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