[Numpy-discussion] Writing/reading a numeric array to a file
mithrandir42 at web.de
Tue Nov 8 22:31:37 EST 2005
I have been using Numeric and/or numarray for a while now and I now I
have a question concerning the reading and writing data to a file.
Until now I had used pycdf, which is an interface to the netcdf library,
to save and load my numeric arrays. However, since my application
already has too many dependencies, I would like to cut down on these two
and replace the saving and loading by a method intrinisc to Numeric or
Pickling is not an alternative to me, because I need to have a
representation that can be read by other programs (and yet is faster
than ASCII). NetCDF was a good choice for that, but I would really like
to not depend on it.
So my questions are:
(1) Are the numarray functions 'fromfile' and 'tofile' 100% portable
among platforms, i.e. do they automatically recognize endian-ness and such?
(2) Does it make sense to still use numarray? I know Travis would say
"use scipy_core". However, for me this would provide much unneeded
functionality and I have not yet found an easy way to install scipy_core
(it seems to require ATLAS and such, which are not so easy to install if
you don't have it prepackaged). And after all, my goal is to cut down
(3) Let me restate question (2): Will numarray still be maintained? Or
is it also deprecated? What would you advice someone who just needs the
And of course,
(4) What solutions do you use to save/load data to files?
I would deeply appreciate any help on this subject,
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