Change the color of data in legend??

theta2 = theta2*360/(2*pi);
theta3 = theta3*360/(2*pi);
subplot(2,2,1)
plot(index,theta1,'b.-',index,theta2,'k.-',index,theta3,'r.-')
title('Voltage Angle vs. Iteration') % title
axis([0 25 -10 30])
xlabel('iteration(s)')
ylabel('Voltage Angle (degrees)')
legend('V2 Angle','V1 Angle', 'V3 Angle')

My code is above for me ploting. I have tried multiple ways to color code the legend to the same values as my line. I have tried different ways but to no success. This is the final thing I need to for my project. It seems simple, I'm not sure what I'm missing.

Thanks in advance.

Answer 1

[A Jenkins]

Put your labels in the same order as the data you want it to match.

legend('V1 Angle','V2 Angle','V3 Angle')

[Big Meech]

That's still not making a difference for me. I'm not sure what is wrong here.

[A Jenkins]

Perhaps your error is in a part of your code you haven't posted? What happens when you run this?

index=1:10;
theta1=1:10;
theta2=theta1*2;
theta3=theta1*3;
plot(index,theta1,'b.-',index,theta2,'k.-',index,theta3,'r.-')
legend('V1 Angle','V2 Angle','V3 Angle')