Reduce Storage Space of .mat files

I have an input file which takes up 2036KB in storage. When I remove one structure which is composed of 7 single arrays of size 201x361 each the storage space shrinks to 170KB. Why are those singles taking up so much space and is there anyway to reduce? I have saved the input file under different versions, that doesn't help. I cannot change the arrays to anything less than singles or tables due to needing significant figures.

Answer 1

[Sai Bhargav Avula]

Hi,

MATLAB by default stores the mat file with -v7.3 version compression. In your case, you are saving a structure which adds on additional overhead when default version is used, which is directly related to the size of the variables . To work around this issue, please save the MAT file using ‘-v7’ version compression.

The following link would guide you through the steps to change the MAT file version

https://www.mathworks.com/help/matlab/import_export/mat-file-versions.html

Hope this helps.