How can i store a list within a numpy 2d array?

Question

import numpy  
A = numpy.empty([5,5], dtype=**?**)

What should be the dtype for a variable list kind of thing here? or Is there a different way to implement this, which I strongly feel would be the case.

I don't get this. How is this supposed to be a two-dimensional array? — Sven Marnach
– Sven Marnach, Commented Feb 10, 2012 at 15:12
I changed it to numpy.empty([x,y]). I just want to be able to store a list into say a position [a,b] — zubinmehta
– zubinmehta, Commented Feb 10, 2012 at 15:15

Bogdan · Accepted Answer · 2012-02-10 15:18:37Z

6

I think what you want is:

>>> input = numpy.array(range(10))
>>> data = numpy.zeros((2,2), dtype=numpy.ndarray)
>>> data[1][1] = input
>>> data
    array([[0, 0],
          [0, [0 1 2 3 4 5 6 7 8 9]]], dtype=object)

answered Feb 10, 2012 at 15:18

Bogdan

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