Re: [Pytables-users] EArray

[Andre' Walker-L. <wal...@gm...>]

Hi Anthony,

> You can use tuple addition to accomplish what you want:
> 
> (0,) + data.shape == (0,256,1,2)
> 
> Be Well
> Anthony

Thanks!  I knew there had to be a better way.


Cheers,

Andre





> 
> On Sat, Oct 6, 2012 at 12:42 PM, Andre' Walker-Loud <wal...@gm...> wrote:
> Hi All,
> 
> I have a bunch of hdf5 files I am using to create one hdf5 file.
> Each individual file has many different pieces of data, and they are all the same shape in each file.
> 
> I am using createEArray to make the large array in the final file.
> 
> if the data files in the individual h5 files are of shape (256,1,2), then I have to use
> 
> createEArray('/path/','name',tables.floatAtom64(),(0,256,1,2),expectedrows=len(data_files))
> 
> if the np array I have grabbed from an individual file to append to my EArray is defined as data, is there a way to use data.shape to create the shape of my EArray?
> 
> In spirit, I want to do something like (0,data.shape)  but this does not work.
> I have been scouring the numpy manual to see how to convert
> 
> data.shape
>  (256,1,2)
> 
> to (0,256,1,2)
> 
> but failed to figure this out (if I don't know ahead of time the shape of data - in which case I can manually reshape).
> 
> 
> Thanks,
> 
> Andre
> 
> 
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