A Dimecres 08 Novembre 2006 13:42, amit soni escrigué:
> Hi,
> i have a file with following format:
> 1 2
> 3 9
> 2 3
> 4 4
> I want to read it and then store the values into two matrices, s.t.
> A=[1 2;3 9]
> B=[2 3;4 4]
>
> Can anyone tell me how to do this in python?
> thanks
> Amit
There are many possibilities. One of them could be:
In [64]: a = []; b = []
In [65]: for i, line in enumerate(file("/tmp/data.txt")):
....: if i < 2:
....: a.extend([float(n) for n in line.split()])
....: else:
....: b.extend([float(n) for n in line.split()])
....:
In [66]: A=numpy.array(a).reshape(2,2); B=numpy.array(b).reshape(2,2)
In [67]: A, B
Out[67]:
(array([[ 1., 2.],
[ 3., 9.]]),
array([[ 2., 3.],
[ 4., 4.]]))
HTH,
--
>0,0< Francesc Altet http://www.carabos.com/
V V Cárabos Coop. V. Enjoy Data
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