Loading a MAT file gives "Cannot read file", yet sucessfuly loads data into memory.

Question

David Leather 2020-11-19

0
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https://ww2.mathworks.cn/matlabcentral/answers/654038-loading-a-mat-file-gives-cannot-read-file-yet-sucessfuly-loads-data-into-memory

回答： Rohit Pappu 2020-11-25

Hi,

I ran an experiment on a cluster, and noticed 1/10,000 MAT files gave a "cannot read file" error when collecting results. I downloaded the MAT file and confirmed the error. I then reran the script that generated the MAT file, and was given the same error on the new MAT file. Once again, I download the MAT file onto my local machine. I noticed despite the error, MATLAB successfully loads variables into the workspace and they seem to be working fine.

I suppose I shouldn't be compaining but I want to know what is going on....

Obtaining the header from the following code outputs

fid = fopen(fn, 'r');
header = fread(fid,120).';
fclose(fid);
char(header)
MATLAB 5.0 MAT-file, Platform: GLNXA64, Created on: Thu Nov 19 04:19:49 2020   

Note that I restarted MATLAB and cleared all multiple times, to ensure the variables were not in my workspace beforehand.