3D sparse matrices

Hi,

I've read a few posts (dating from 2015) from people seeking to implement 3D sparse matrices in MATLAB. I'm wondering why is the case that there's still no option to create this 3D sparse matrices in MATLAB.

Regards

Answer 1

[James Tursa]

You can use the ndSparse FEX submission by Matt J:

https://www.mathworks.com/matlabcentral/fileexchange/29832-n-dimensional-sparse-arrays?s_tid=srchtitle

[Francisco E. Enríquez Mier y Terán]

Hi James,

Thanks. I'll ask Matt J. about the limitations of his code.

My task is creating a 3D matrix with 33856 x 33856 x 16 elements. Many of them zero; of course.