Clever Geek Handbook

Unload matrix and free memory

I can load the matrix from a text file:

load mydata.txt

The problem is that my matrix file is about 250MB and after several such loads I have no memory to work with the following files.

How can you unload it and free up resources for future use?

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3 answers


Use clear or clearvars , By default MATLAB will create mydata variable as a result of your assertion, so



clear mydata
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Find variables in your workspace that contain large datasets both in your script or from a console type

clear whateverVariableName

To clear all memory usage



clear all

You can right click on individual variables in the workspace editor and delete them using the IDE if you like.

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What do you need to do clear mydata

and then release pack

. The first command tells Matlab that a reference to the memory stored for mydata is no longer needed. The second command tells Matlab to free unused memory. If you don't pack

, then the memory will be freed when the Matlab memory manager makes a decision.

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