Multiple legands with semilogy
Asked by matt reister on 9 Feb 2011
Latest activity Answered by SUDIP PODDAR on 6 Aug 2011
I am using a loop to plot multiple plots in the same windows I would like to use mutliple legands to identify each data set. When i try to use legend('label1','label2') it says:
"Warning: Ignoring extra legend entries."
and when I attempt to call legend multiple times it simply replaces the old legend. I would prefer if there is a way i could call legend each time I add a new data set to the graph.
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2 Answers
Answer by Gurudatha Pai on 18 Jun 2011
My guess is that you are probably using more strings in legend(); e.g: you are plotting only one array and passing two legend strings like below
plot(x,y);
legend('labels', 'label2');
you could probably do
h= figure();
plot(x,y)
hold on
plot(x, y2);
legend('labels', 'label2');
You could as well do something like this for each of your plots
h= figure(); hold on plot(x,y); legendmat = [legendmat; 'label1'] legend(legendmat) % some other code figure(h) plot(x, y2); legendmat = [legendmat; 'label2'] legend(legendmat) % some other code figure(h) plot(x, y3); legendmat = [legendmat; 'label3'] legend(legendmat)
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Answer by SUDIP PODDAR on 6 Aug 2011
??? Undefined function or variable 'legendmat'. give this error . what is the solution?
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