Why is my scatter plot blank?

Hello,

I am running a script in my computer where any scatter plot turns up empty. I have run the same script in another computer where it had no problem so there is no error in the cod to cause this.

Does anyone have any idea what might be wrong? I am using Matlab 2017a.

Thank you!

[Jan]

There is no chance to guess the reason. Please provide more details, e.g. a piece of code which reproduces the problem.

You might have redefined a function. If you have e.g. a user-defined file called "scatter.m" in your Matlab path, which does nothing, the different behavior would be explained.

[Guillaume]

Have you try setting a breakpoint on any of the scatter call and seeing what values it is given?

Does a very basic scatter produces a plot on your machine, e.g.

scatter([1 2], [1 2])

[Ioanna Saxoni]

I have tried the simplest scatter plot possible in the command line:

aa=[1 2 3]; bb=aa; scatter(aa,bb);

And it still gives me a blank window.

The funny thing is that I have already run the exact same script in another pc and it run perfectly! So I don't believe it is code related. Maybe it is version related?

[OCDER]

Does this work by any chance?

 scatter([1 2 3], [1 2 3]);
 set(gcf, 'renderer', 'painters')

[Ioanna Saxoni]

Yes it does! Thank you very much!

Would you mind explaining what renderer does?Why did it work now?

Answer 1

[OCDER]

 scatter([1 2 3], [1 2 3]);
 set(gcf, 'renderer', 'painters')

Sometimes there's a bug that prevents the graphics card from properly drawing the figures generate by Matlab via the OpenGL renderer (default). It's been an on and off bug for a while:

https://www.mathworks.com/matlabcentral/answers/100641-why-is-matlab-not-displaying-my-scatter-plot

You could use this to set the default renderer for all figures generated:

 set(0, 'DefaultFigureRenderer', 'painters')