Load a highly nested MAT file into Python

Question

I'm trying to load a MAT file that is a cell array of structs. Each of those structs have many fields, some of which are themselves cells.

A typical call would be:

 myCell{1}.myStructField{1}.myStructField

How do I load such a nested structure into Python?

Thanks for your thoughts.

Danica · Accepted Answer · 2012-07-14 22:04:54Z

2

scipy.io.loadmat will load the mat file if it's pre-v7.3; you can then access it like matfile['myCell'][0]['myStructField'][0]['myStructField'].

If it's v7.3 or higher, you can use h5py; after opening it, I think it'll also be f['myCell'][0]['myStructField'][0]['myStructField'], though you'll need to worry about possibly transposing the matrices because of column-major / row-major differences.

edited Jul 14, 2012 at 22:04

answered Jul 14, 2012 at 18:07

Danica

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