Re: [Pytables-users] Clear chunks from CArray

[Anthony S. <sc...@gm...>]

Hello Giovanni,

I think you may need to del that slice and then possibly repack.  Hope this
helps.

Be Well
Anthony


On Mon, Aug 5, 2013 at 2:09 PM, Giovanni Luca Ciampaglia <
glc...@gm...> wrote:

> Hello all,
>
> is there a way to clear out a chunk from a CArray? I noticed that setting
> the
> data to zero actually takes disk space, i.e.
>
> ***
> from tables import open_file, BoolAtom
>
> h5f = open_file('test.h5', 'w')
> ca = h5f.create_carray(h5f.root, 'carray', BoolAtom(), shape=(1000,1000),
> chunkshape=(1,1000))
> ca[:,:] = False
> h5f.close()
> ***
>
> The resulting file takes 249K ...
>
> Best,
>
> --
> Giovanni Luca Ciampaglia
>
> Postdoctoral fellow
> Center for Complex Networks and Systems Research
> Indiana University
>
> ✎ 910 E 10th St ∙ Bloomington ∙ IN 47408
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> ✉ gci...@in...
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