Effacer les filtres
Effacer les filtres

Legend of graph doesn't match plot color and style

59 vues (au cours des 30 derniers jours)
Matt
Matt le 19 Oct 2018
Commenté : Chris le 19 Oct 2018
Hello,
I have searched the forum and found some info regarding the legend color not matching the lines. However, I cannot get my head around the problem in my case where I have not only different colors, but also different line styles. Here is my code:
inputNumber=3;
figure
hold on;
plot(temps(1:25001,1,1),tempFrFilt(1:25001,1,1),'-b','linewidth',2);
plot(temps(1:25001,2,1),tempFrFilt(1:25001,2,1),'-.b','linewidth',2);
plot(temps(1:25001,3,1),tempFrFilt(1:25001,3,1),'--b','linewidth',2);
plot(temps(1:25001,1,1),tempChFilt(1:25001,1,1),'-b','linewidth',2);
plot(temps(1:25001,2,1),tempChFilt(1:25001,2,1),'-.b','linewidth',2);
plot(temps(1:25001,3,1),tempChFilt(1:25001,3,1),'--b','linewidth',2);
if inputNumber>1
plot(temps(1:25001,1,2),tempFrFilt(1:25001,1,2),'-g','linewidth',2);
plot(temps(1:25001,2,2),tempFrFilt(1:25001,2,2),'-.g','linewidth',2);
plot(temps(1:25001,3,2),tempFrFilt(1:25001,3,2),'--g','linewidth',2);
plot(temps(1:25001,1,2),tempChFilt(1:25001,1,2),'-g','linewidth',2);
plot(temps(1:25001,2,2),tempChFilt(1:25001,2,2),'-.g','linewidth',2);
plot(temps(1:25001,3,2),tempChFilt(1:25001,3,2),'--g','linewidth',2);
if inputNumber==3
plot(temps(1:25001,1,3),tempFrFilt(1:25001,1,3),'-y','linewidth',2);
plot(temps(1:25001,2,3),tempFrFilt(1:25001,2,3),'-.y','linewidth',2);
plot(temps(1:25001,3,3),tempFrFilt(1:25001,3,3),'--y','linewidth',2);
plot(temps(1:25001,1,3),tempChFilt(1:25001,1,3),'-y','linewidth',2);
plot(temps(1:25001,2,3),tempChFilt(1:25001,2,3),'-.y','linewidth',2);
plot(temps(1:25001,3,3),tempChFilt(1:25001,3,3),'--y','linewidth',2);
end
end
legend(cellstr(legendNames),'Location','southwest');
A picture can be found here:
What am I doing wrong?

Réponse acceptée

Chris
Chris le 19 Oct 2018
The legend adds entries for each plot in the order that they were added to the current axes. If you want to change the order, or skip plots, you can do something like this:
P1 = plot( ... );
P2 = plot( ... );
P3 = plot( ... );
legend([P3, P1],'a label','another label')
The above example creates a legend for the third and first plot.
  6 commentaires
Matt
Matt le 19 Oct 2018
Thank you Chris, it did the trick! I've got it, but its a tricky one from Matlab.
Chris
Chris le 19 Oct 2018
Cheers, glad I could help!

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