[SciPy-User] Matrix indexing and updating
Luca Manini
manini.luca@tiscali...
Mon Nov 1 05:52:42 CDT 2010
I'm sorry for the "half backed" reply ... a too fast C-c C-c :/
The missing part was an example of an ugly code that I find myself
writing too often in order to use a 1xN scipy array as a list (to
iterate or to access the entries a v[0], v[1], etc.):
In [58]: import scipy
In [59]: v = scipy.matrix(range(5))
In [60]: v
Out[60]: matrix([[0, 1, 2, 3, 4]])
In [61]: for x in v:
....: print x
....:
[[0 1 2 3 4]]
In [62]:
In [63]: z = v.tolist()[0]
In [64]: z
Out[64]: [0, 1, 2, 3, 4]
In [65]: for x in z:
....: print x
....:
....:
0
1
2
3
4
I know that the problem probably is my inexperience with scipy and
that the (related) fact to use explicit iteration too often, but it is
still a problem anyway.
TIA, Luca
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