What common mistakes causes Matlab to crash?

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Chad Greene
Chad Greene 2014-7-21
回答： Robert Cumming 2014-7-25
Do you frequently make a mistake that causes Matlab to crash or freeze up?

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回答（3 个）

Chad Greene
Chad Greene 2014-7-21
At least once a week I get the dimensions wrong in repmat, causing Matlab to try to create an impossibly large matrix.
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per isakson
per isakson 2014-7-21
编辑：per isakson 2014-7-21
Which Matlab release and which OS? Reproducible? Example?
Chad Greene
Chad Greene 2014-7-21
Mac OSX 10.8.5, Matlab 2012b.
x = 1:1e+6;
y = repmat(x,length(x),length(x));

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Image Analyst
Image Analyst 2014-7-21
This does not crash MATLAB for me:
x = 1:1e+6;
y = repmat(x,length(x),length(x));
I simply get an error:
Error using repmat
Maximum variable size allowed by the program is exceeded.
Error in test (line 2)
y = repmat(x,length(x),length(x));
but throwing an error is not crashing . Windows does not say "MATLAB has encountered an error and needs to close." which it would say if MATLAB itself crashed, rather than just some error in your program. It would also bring up a window asking you to send information to the Mathworks about the crash.
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Joseph Cheng
Joseph Cheng 2014-7-21
编辑：Joseph Cheng 2014-7-21
It might be an OS issue. I was able to perform the x = and y= above in Windows 64bit for Matlab 2011a. And I get an out of memory error.
Image Analyst
Image Analyst 2014-7-22
Can you type Control-Shift-Esc and look at what process is taking up the CPU?

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Robert Cumming
Robert Cumming 2014-7-25
I get unrepeatable and uncontrolled crashes when using the matlab.xunit testing framework doing integration tests using GUI's.
Most of the time the run without any problems - but sometimes Matlab crashes - but I can then restart Matlab and repeat the tests just fine.
No out of memory problems as far as I can tell.

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