Hello German,

The easiest and probably the fastest way is to use numpy array.
Simply pass the table into the array constructor:

import numpy as np
a = np.array(f.root.path.to.table)

If your table contains more than one type and you want to keep that
setup via a structured array, also pass in the dtype:

a = np.array(f.root.path.to.table, f.root.path.to.table.dtype)

Be Well
Anthony

On Mon, Feb 20, 2012 at 4:57 AM, German Ocampo <geroca...@gmail.com> wrote:

> Good morning
>
> Im new in Pytables and I have a simple question, please help me.
>
> I have a pytable created with four Float() columns, the number of rows
> in the table is around 500.000. I need to read all the complete table
> in fastest way possible to a numpy array in memory.  Im using the
> following command:
>
>   total =[ (x['col1'],x['col2'],x['col3'],x['col4'],) for x in
> row_relational]
>
> Question: Is there another command that allows to read in a fastest way?
>
> Many thanks
>
> German
>
>
> ------------------------------------------------------------------------------
> Try before you buy = See our experts in action!
> The most comprehensive online learning library for Microsoft developers
> is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3,
> Metro Style Apps, more. Free future releases when you subscribe now!
> http://p.sf.net/sfu/learndevnow-dev2
> _______________________________________________
> Pytables-users mailing list
> Pytables-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/pytables-users
>
------------------------------------------------------------------------------
Try before you buy = See our experts in action!
The most comprehensive online learning library for Microsoft developers
is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3,
Metro Style Apps, more. Free future releases when you subscribe now!
http://p.sf.net/sfu/learndevnow-dev2
_______________________________________________
Pytables-users mailing list
Pytables-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/pytables-users

Reply via email to