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Asked: 2026-06-13T14:45:22+00:00

My hdf5 file contains three arrays: ArrayA(30,100,100),ArrayB(100,100),ArrayC(100,100),how can I use LZF or LZO filters

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My hdf5 file contains three arrays: ArrayA(30,100,100),ArrayB(100,100),ArrayC(100,100),how can I use LZF or LZO filters to compress them?

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1 Answer

  1. Editorial Team

    I would recommend to use the blosc filter. It usually performs better than LZF or LZO.
    This should work:

    filters = tables.Filters(complevel=4, complib='blosc')
atom = tables.Float32Atom()
array = h5_f.createCArray(group, 'ArrayA', atom, shape, filters=filters)
array[:] = data
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