MATLAB Answers

how can a .mat file crash matlab ?

8 views (last 30 days)
Natan
Natan on 30 Jan 2016
Commented: Natan on 30 Jan 2016
I've tried to load a .mat file (48 MB) that I got from a colleague found here and it crashed matlab altogether. This happens even if I change Matlab's path to the same folder where the file is at. What is going on? even if I assume that the file is corrupt this shouldn't happen... Any idea how to solve this? (this was tested on Matlab 2015b, win7 and win10 machines)

  1 Comment

Walter Roberson
Walter Roberson on 30 Jan 2016
It crashes MATLAB R2014a on OS-X as well.

Sign in to comment.

Accepted Answer

Walter Roberson
Walter Roberson on 30 Jan 2016
I see a hint that it might contain the illegal variables
delta_uv- delta_uw. delta_vw/
then I find that the splitmat complains that there is a zero-byte tag. It is not clear that the program is appropriate for the purpose, though, as the .mat is a -v7.3 whereas that solution was released during 7.2, before the new file format.
I find that routine to not be able to fix the problem, which suggests that there are problems that are deeper than just a bad variable name.
That solution also mentions matzerofix which is intended to process files with the zero-tag error, which was something that dated from R14. I would not immediately expect it to be compatible with -v7.3 files. It did report 4 errors, two of which it had suggestions for; I do not know enough to say whether the suggestions have any hope of working with a -v7.3 file.
MATCAT is unable to analyze the file, which is not surprising as that tool is only for v5 files.
I don't think you are going to be able to load this file. I recommend you open a support case on this, as MATLAB should, as you rightly note, not crash when reading a .mat file.

  1 Comment

Natan
Natan on 30 Jan 2016
wow, thank you so much for the quick response!

Sign in to comment.

More Answers (0)

Tags

Products

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by