Add legend to each figure()???

7 次查看（过去 30 天）
Yaju Rajbhandari
Yaju Rajbhandari 2020-2-16
回答： Gifari Zulkarnaen 2020-2-16
I have 3 diffrent figure and need to add legend to all the plots. I am having issue with adding legend to individual figures.
figure(1);
plot(P1);
hold on;
plot(P2);
hold on;
plot(P3);
hold on;
plot (TotalDemand);
hold on;
plot(TotalSupply);
%second plot
figure(2);
stairs(P1);
hold on;
stairs(P2);
hold on;
stairs(P3);
hold off;
%
figure(3)
stairs (TotalDemand);
hold on;
stairs(TotalSupply);
hold on;
stairs(Ene_Unserved);
  4 个评论
显示 2更早的评论
Rik
Rik 2020-2-16
@Kalyan I would suggest posting your comment as an answer.
Walter Roberson
Walter Roberson 2020-2-16
Note that Mohamed shows legend() being called before figure(2) is called.
It is possible to add a legend to an axes that is not the "current" axes, but it requires finding the handle to the axes.

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回答（1 个）

Gifari Zulkarnaen
Gifari Zulkarnaen 2020-2-16
You need to make the x and y data separately, like this:
figure(1)
plot(x,P1)
hold on
plot(x,P2)
plot(x,P3)
plot(x,TotalDemand)
plot(x,TotalSupply)
hold off
legend('P1','P2','P3','TotalDemand','TotalSupply')
figure(2)
stairs(x,P1)
hold on
stairs(x,P2)
stairs(x,P3)
hold off
legend('P1','P2','P3')
figure(3)
stairs(TotalDemand)
hold on
stairs(TotalSupply)
stairs(Ene_Unserved)
hold off
legend('TotalDemand','TotalSupply','Ene_Unserved')

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