Save two variables to a mat file.
Save mat file version 7 3.
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.
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.
In this case the default mat file version is 7 3.
It complaints that you try to save to a mat file older than 7 3.
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.
In this case the default mat file version is 7 3.
Use the matfile function to create files in version 7 3 format.
Use the matfile function to access matlab variables directly from mat files on disk without loading the full variables into memory.
Then append a third variable without compression to the same file.
Your matlab is r2010a which should be later than v7 3.
How to save v7 3 format variable quickly in few.
To identify or change the default mat file version access the mat files preferences.
For example this code.
I am trying to save a large workspace as a mat for later use.
Create two variables a and b and save them to a mat file version 7 or 7 3.
By default the save function compresses variables a and b before saving them to myfile mat.
The only exception to this is when you create new mat files using the matfile function.
By default all save operations create version 7 mat files.
The only exception to this is when you create new mat files using the matfile function.
Open the documentation for the save function using doc save.
Learn more about v7 3 save variable 2gb.
The save variables to version 7 3 mat file example on that page shows the exact syntax.
That is why the warnning message sounds strange.
While saving as version 7 3 works i cannot load or import the new mat file into r2017a.
