Colors not showing in legend

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Fabrizio Bernardi
Fabrizio Bernardi on 19 Nov 2021
Commented: VBBV on 19 Nov 2021
Hello everyone, I am having problems with legends in plots... If I plot several things defining colors and using hold on, once used the legend command I don't see the color references... as example, after the following code:
plot(my_data(zone1,2),my_data(zone1,3),'b')
hold on
plot(my_data(zone2,2),my_data(zone2,3),'r')
plot(my_data(zone3,2),my_data(zone3,3),'g')
plot(my_data(zone4,2),my_data(zone4,3),'y')
plot(my_data(zone5,2),my_data(zone5,3),'c')
plot(my_data(zone6,2),my_data(zone6,3),'k')
legend('zone1','zone2','zone3','zone4','zone5','zone6')
I have the following plot:
Plot is fine and all references are there, but no colors...
Can someone help?
Thank you very much,
Fabrizio

Accepted Answer

VBBV
VBBV on 19 Nov 2021
legend('Zone1','Zone2','Zone3','Zone4','Zone5','Zone6');
Use a different variable name for legends. It seems you also use it as indices in your plot matrices.
  3 Comments
VBBV
VBBV on 19 Nov 2021
legend({'Zone1','Zone2','Zone3','Zone4','Zone5','Zone6'});
or try using a cell array

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