Re: [Numpy-discussion] reading matrix from a file

[Charles R H. <cha...@gm...>]

On 11/8/06, Francesc Altet <fa...@ca...> wrote:
>
> A Dimecres 08 Novembre 2006 13:42, amit soni escrigu=E9:
> > 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=3D[1 2;3 9]
> >  B=3D[2 3;4 4]
> >
> >   Can anyone tell me how to do this in python?
> >  thanks
> >  Amit


Try

In [8]: tmp =3D fromfile('tmp.txt', sep=3D' ', dtype=3Dint)

In [9]: a =3D tmp[:4].reshape(2,2)

In [10]: b =3D tmp[4:].reshape(2,2)

In [11]: a
Out[11]:
array([[1, 2],
       [3, 9]])

In [12]: b
Out[12]:
array([[2, 3],
       [4, 4]])

Chuck