In principle there is no such format in the sense of other numerical environments. But it is possible to simple put the data into a python module and import that, like # Datafile data.py import Numeric data=Numeric.array([[1,2,3],[4,5,6],[7,8,9]]) # in python (other module or interactive session) from data import data print data HTH __Janko Peter I. Hansen writes:

Hi,

I'm trying to find out what format a matrix input file should have in numpy. example :

I have the matrix : [[1 2 3 4 5 6 7 8 9]]

and want to read it to nympy from a text-filen that is easy for a user to generate in an editor.

Can you tell me how to do that. I read the manual and it didnøt given much af on idea.

I thank you in advance

Peter I. Hansen

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I'm trying to find out what format a matrix input file should have in numpy.

Any format you like, but you have to supply the I/O code yourself. Which however is really simple. For example, the following function from ScientificPython: from Scientific.IO.TextFile import TextFile import string, Numeric def readArray(filename): "Return an array containing the data from file |filename|." data = [] for line in TextFile(filename): if line[0] != '#': data.append(map(eval, string.split(line))) a = Numeric.array(data) if a.shape[0] == 1 or a.shape[1] == 1: a = Numeric.ravel(a) return a Konrad. -- ------------------------------------------------------------------------------- Konrad Hinsen | E-Mail: hinsen@cnrs-orleans.fr Centre de Biophysique Moleculaire (CNRS) | Tel.: +33-2.38.25.56.24 Rue Charles Sadron | Fax: +33-2.38.63.15.17 45071 Orleans Cedex 2 | Deutsch/Esperanto/English/ France | Nederlands/Francais -------------------------------------------------------------------------------