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How to change the stem line color

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Daniel Carr
Daniel Carr on 27 Apr 2016
Commented: Voss on 3 May 2024 at 16:55
I am trying to do a stem plot with all the lines the same color. When I plot any of the examples from the website, all the lines have a gradient color on them, which makes my dataset confusing. I am using 2016a.
I have tried to change the color parameter of the data, but all this changes is the marker color. Please can someone direct me in the right direction as to how I can change this? I have included a picture of what my output looks like:
  6 Comments
Baptiste
Baptiste on 3 May 2024 at 8:06
Ok thank you :), And do you think it is possible to plot in 3D using stem3 X, Y and Z and have a color gradient in Z axis ?
Voss
Voss on 3 May 2024 at 16:55
Yeah, it's probably possible. Not with stem3, but with patch or surface.

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Accepted Answer

Star Strider
Star Strider on 27 Apr 2016
It may be perception rather than reality. Experimentally, increase the line width, and the lines look as they should:
figure(1)
stem(X1,Y1,'Marker','none','Color',[0 0.498039215803146 0], 'LineWidth',2);
hold on
stem(X1(Y1>30),Y1(Y1>30),'Marker','none','Color',[1 0 0], 'LineWidth',2);
hold off
  2 Comments
Daniel Carr
Daniel Carr on 27 Apr 2016
Thank you, this seems like an annoying feature, but yes increasing the line width helps.
Star Strider
Star Strider on 27 Apr 2016
My pleasure.
I didn’t see any problem with your code, so this was my first troubleshooting step.

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More Answers (1)

Mike Garrity
Mike Garrity on 27 Apr 2016
That looks like the graphics driver bug which was discussed in this thread. Do you have an Intel GPU and Windows 10? My understanding is that the bug is limited to a particular Windows 10 driver version from Intel.
If that's the case, that thread has a couple of workarounds.
  1 Comment
Daniel Carr
Daniel Carr on 27 Apr 2016
Ah I do have windows 10 with intel GPU. I will look into that and see what I can do

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