A numpy array deep copy of the data array.
Changing the returned numpy array does not change the data array.
| Examples: |
|---|
>>> a = f.array
>>> type(a)
<type 'numpy.ndarray'>
>>> print a
[0 1 2 3 4]
>>> a[0] = 999
>>> print a
[999 1 2 3 4]
>>> print f.array
[0 1 2 3 4]