Matlab crashes when plotting!

Here is a simple code to plot X,Y graph:

clear all; close all; fclose all; N=1000000; x=linspace(1,100,N); y=x.*x; plot(x,y,'o');

This program crashes Matlab when N is increased! But the same program runs if I have plot(x,y);

Any help? Thanks.

Answer 1

[Jan]

Please explain, what "crash" exactly mean: Do you get an error message?

You want to draw one million circles in a diagram? Beside the crash, do you assume that the resulting graphics could be useful to demonstrate anything?

Try to specify the renderer:

x = linspace(1, 100, 1e6);
y = x^2;
figure('Renderer', 'OpenGL');
opengl software
plot(x, y, 'o');

opengl hardware
plot(x, y, 'o');

figure('Renderer', 'ZBuffer');
plot(x, y, 'o');

figure('Renderer', 'Painters');
plot(x, y, 'o');

If only the OpenGL hardware method crashs, try to update the drivers of your graphics card.

[Aditya Vaishya]

Crash: Matlab closes without any error msg. Well, this is an example program demonstrating the problem which I am encountering while plotting high frequency measurement datasets were the array can be upto 3 million datapoints in length. Circles are not needed! You can have dots but then Matlab crashes!

I tried to update the graphics and run the code you send. But no luck! I am using Ubuntu 12.1 64 bit with 64 bit Matlab.

[Jan]

@Aditya: Please do not post only, that the code crashs, but try to run the 4 different shown methods to see, which of them fails. It is clear that one of them fails, but it matters which of them it is.

[Shruthi Suresh]

Hi, I'm facing the same problem. Whenever I try to run the plot function, my Matlab (2014b) crashes. I even changed the graphics card settings to OpenGL with no luck.

[Image Analyst]

Shruti, see the FAQ.

Answer 2

[Shashank Prasanna]

Lets try to narrow down the issue.

Does this crash without the plot:

clear all
N=1000000; 
x=linspace(1,100,N); 
y=x.*x;

Or is it only with the plot?

[Shashank Prasanna]

Try changing the renderer as Jan mentioned.

figure('Renderer', 'Painters'); plot(x, y);

It that works, then restart matlab and run the following:

opengl software

That should resolve the issue.

http://www.mathworks.com/help/matlab/ref/opengl.html

Answer 3

[Aditya Vaishya]

Only when I plot.

[Shashank Prasanna]

Please see my comment on the above answer. Please try and keep replys to answers as comments and not as a dedicated answer.