save a large data to mat file

Hi, I want to save a large data 3^14*1000 double precision to mat file, however, matlab reports error as:

Warning: Variable 'a' cannot be saved to a MAT-file whose version is older than 7.3. To save this variable, use the -v7.3 switch. Skipping...

And it cannot be saved.

I can change the precision to single but it is still very large, >1 GB. Is there a way matlab can save large data to a mat file? Thanks.

Answer 1

[Jakub]

Try to find it here.

http://www.mathworks.com/matlabcentral/answers/15521

[Jakub]

Try using HDF5 file..

[C Zeng]

so use: save('a.mat','a','-v7.3'); Is it HDF5 file?

[Jakub]

type help h5write. your solution might be working as well

[C Zeng]

Thanks, Jakub, which one is better? I think there may be many ways to handle it, right?