Maximum variable size allowed by the function is exceeded.

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load('EEG.mat')
Error using load
Maximum variable size allowed by the function is exceeded.
I want to load my mat file, but it always report the error above. What should I do?
I tried matfile, it reported the same error.
  6 Comments
Walter Roberson
Walter Roberson on 1 Dec 2023
I just created a 4 gigabyte variable, saved it in a -v7.3 fie, reduced my maximum array size preference and tried loading it. I got,
Error using load
Requested 1x4000000000 (3.7GB) array exceeds maximum array size preference (1.3GB). This might cause MATLAB to become unresponsive.
Related documentation
An error about "maximum variable size permitted by the function" rather than by "array size preference" or by "out of memory" usually means that somehow MATLAB thinks the data being loaded is larger than the maximum array size it can handle at all -- which is 2^48 bytes (256 terabytes) for 64 bit versions, or 2 gigabytes for 32 bit versions.
Image Analyst
Image Analyst on 1 Dec 2023
@JJJJJ what does this say if you type it in the command window?
>> memory

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