NumPY: Reading/Writing Arrays To/From Files
John J. Lee
phrxy at csv.warwick.ac.uk
Thu Mar 29 20:18:32 CEST 2001
On Wed, 28 Mar 2001, Grant Griffin wrote:
> Ben Held wrote:
> > I would like to be able to read/write NumPY array objects to/from ascii
> > files. I could not find support for this in the NumPY code. Any ideas?
> > Ben
> I forget exactly, but I think there's something out there called
> "arrayio". Look for Travis Oliphant's page: I think you can find it
ArrayIO I think is for binary data, not ASCII. As far as I can tell,
Travis' pages haven't resurfaced since they disappeared a few months ago.
There is a copy at
but this may be ancient for all I know. You can do the same thing with
the Python standard library too, IIRC.
TableIO reads ASCII tables.
There is a bug somewhere around line 40 that you'll get if you use Numeric
arrays where it wants lists. Just delete the line that checks for array
type, and put in a try / except if you feel like it.
This is faster than a python version of course, but the GNU C library
implementation of strtok() has trouble with input like .3 or 3. (one or
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