[Numpy-discussion] Data file format choice.
Fri Jan 30 11:31:25 CST 2009
Gary Pajer wrote:
> It's time for me to select a data format.
> My data are (more or less) spectra ( a couple of thousand samples),
> six channels, each channel running around 10 Hz, collecting for a
> minute or so. Plus all the settings on the instrument.
> I don't see any significant differences between netCDF4 and HDF5.
Gary: netCDF4 is just a thin wrapper on top of HDF5 1.8 - think of it
as a higher level API.
> Similarly, I don't see significant differences between pytables and
> h5py. Does one play better with numpy?
pytables has been around longer and is well-tested, has nice pythonic
features, but files you write with it may not be readable by C or
fortran clients. h5py works only with python 2.5/2.6, and writes
'vanilla' hdf5 files readable by anybody.
> What are the best numpy solutions for netCDF4?
There's only one that I know of - http://code.google.com/p/netcdf4-python.
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