Plot - add legend individually

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RuiQi
RuiQi il 13 Lug 2017
Commentato: ROBIN KUMAR il 18 Feb 2022
How can I update the legend of each plot individually rather than at the end of the code ?
plot(x1, y1, '-vr', 'LineWidth', linewidth, 'MarkerSize', markersize);
legend('Algorithm 1');
plot(x2, y2, '-vr', 'LineWidth', linewidth, 'MarkerSize', markersize);
legend('Algorithm 2');
The code above overwrites the legend for Algorithm 1
  1 Commento
ROBIN KUMAR
ROBIN KUMAR il 18 Feb 2022
The same problem I have been facing with R2021a version. Please help me execute the same..

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Adam
Adam il 13 Lug 2017
Modificato: Adam il 13 Lug 2017
If you are working with a fairly recent version of Matlab (> R2014b I think) then you can edit an existing legend if you keep the handle to it:
figure; hAxes = gca;
plot(hAxes, x1, y1, '-vr', 'LineWidth', linewidth, 'MarkerSize', markersize);
hLegend = legend( hAxes, 'stuff' );
hold( hAxes, 'on' )
plot(hAxes, x2, y2, '-vr', 'LineWidth', linewidth, 'MarkerSize', markersize);
hLegend.String{2} = 'other stuff';
It is more efficient to do all the plots first and then put the legend up for all of them though.
  3 Commenti
Gopal New
Gopal New il 30 Nov 2020
Modificato: Gopal New il 30 Nov 2020
Hi,
when i run the above code, i only get one legend. i'm trying to do something similar, but can't make it work. i'm using R2016.
ROBIN KUMAR
ROBIN KUMAR il 18 Feb 2022
This doesn't work at all. The same problem I have been facing with R2021a version. Please help me execute the same..

Accedi per commentare.

Più risposte (1)

ROBIN KUMAR
ROBIN KUMAR il 18 Feb 2022
The same problem I have been facing with R2021a version. Please help me execute the same..

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