Alternative to Matlab cell data-structure in Python

Question

I have a Matlab cell array, each of whose cells contains an N x M matrix. The value of M varies across cells.

What would be an efficient way to represent this type of a structure in Python using numpy or any standard Python data-structure?

I think the easiest solution would be a dictionnary d={key: numpy.array([N,M]) ). You can iterate over it and access elements by key, however you lose the possibility to access by position. — lucasg
– lucasg, Commented May 22, 2013 at 10:49
A list is probably the closest thing in Python to a Matlab cell array. It can hold mixed types, like matrices of different sizes. (See Shai's answer) — Joshua Barr
– Joshua Barr, Commented May 22, 2013 at 11:02

Shai · Accepted Answer · 2013-05-22 10:50:38Z

5

Have you considered a list of numpy.arrays?

answered May 22, 2013 at 10:50

Shai

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1 Comment

user1953384 Over a year ago

Yes, I think this might be the simplest thing to do for now. The dictionary idea isn't the best, because I would be accessing the arrays by their position in the list. Thanks!

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