help multiple legends?

2016 4 30
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更新时间：2016 5 2
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[sol]=aaa(@ptch);
[x1,x2]=ptch(sol)
plot(x1,x2,'r.-');hold on;
xlabel('x1');ylabel('x2')
legend('Modified');
pause('on')
fprintf('Press any key to continue to other algorithm')
pause
[Sol]=bbb(@ptch);
[x1 x2]=ptch(Sol)
plot(x1,x2,'k.-'); hold on;
xlabel('x1');ylabel('x2')
legend('pre modified');
toc
how to display the legend in such a case?

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JL555
JL555 2016-4-30
编辑：JL555 2016-4-30
That coding i posted...because only one legend comes and not 2
Walter Roberson
Walter Roberson 2016-4-30
You legend once for every iteration of your for loops. You need 42 legend entries.
JL555
JL555 2016-4-30
编辑：JL555 2016-4-30
My bad let me edit the code
Walter Roberson
Walter Roberson 2016-4-30
Are your x2 vectors or 2 dimensional arrays?
JL555
JL555 2016-5-1
编辑：JL555 2016-5-2
both x1 and x2 is 1x50 double

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 采纳的回答

Walter Roberson
Walter Roberson 2016-5-2

0 个投票

Do not call legend() twice. Call it once and pass in both entries.

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JL555
JL555 2016-5-2
编辑：JL555 2016-5-2
yes walter i figured it out...by the way thanks anyway do you have any idea on pareto frontier for 2 objective functions?

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