Use the matfile function to access matlab variables directly from mat files on disk without loading the full variables into memory.
Save mat file version 7 3.
To identify or change the default mat file version access the mat files preferences.
By default the save function compresses variables a and b before saving them to myfile mat.
To identify or change the default mat file version access the mat files preferences.
The only exception to this is when you create new mat files using the matfile function.
The only exception to this is when you create new mat files using the matfile function.
When you create a new file using matfile the function creates a version 7 3 mat file that also lets you save variables larger than 2 gb.
Learn more about v7 3 save variable 2gb.
Open the documentation for the save function using doc save.
In this case the default mat file version is 7 3.
Then append a third variable without compression to the same file.
Use the matfile function to create files in version 7 3 format.
That is why the warnning message sounds strange.
For example this code.
If you look at the help of save v7 3 means version 7 0 features plus support for data items greater than or equal to 2gb on 64 bit systems which should be in your advantage.
By default all save operations create version 7 mat files.
How to save v7 3 format variable quickly in few.
Save two variables to a mat file.
Partial loading and saving requires version 7 3 mat files any load or save operation that uses a matfile object associated with a version 7 or earlier mat file temporarily loads the entire variable into memory.
The save variables to version 7 3 mat file example on that page shows the exact syntax.
In this case the default mat file version is 7 3.
While saving as version 7 3 works i cannot load or import the new mat file into r2017a.
Create two variables a and b and save them to a mat file version 7 or 7 3.
I am trying to save a large workspace as a mat for later use.
In order to save your data to a mat file with version 7 3 or later specify the v7 3 flag as the version input argument.