As i had matlab 2019b i thought i would have the latest and greatest mat file version if i type the following ont he command line x evalc type savepath.
Matlab mat file version 7 3 or later.
The only exception to this is when you create new mat files using the matfile function.
Beginning at release 7 3 of matlab mat files are actually saved using the hdf5 format by default except if you use the vx flag at save time see help save in matlab.
Matlab releases r2006b and later all support all mat file versions.
These files can be read in python using for instance the pytables or h5py package.
In this case the default mat file version is 7 3.
That is why the warnning message sounds strange.
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The save variables to version 7 3 mat file example on that page shows the exact syntax.
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.
Matlab releases r2006b and later all support all mat file versions.
Reading matlab structures in mat files does not seem supported at this point.
In this case the default mat file version is 7 3.
Bigger than 2gb data storage.
In this case the default mat file version is 7 3.
Learn more about matlab 2016b big data.
Use the matfile function to access matlab variables directly from mat files on disk without loading the full variables into memory.
For variables larger than 2gb use mat file version 7 3 or later.
By default all save operations create version 7 mat files.
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.
The only exception to this is when you create new mat files using the matfile function.
Your matlab is r2010a which should be later than v7 3.
By default all save operations create version 7 mat files.
Matlab releases r2006b and later all support all mat file versions.
By default all save operations create version 7 mat files.