Hi Francesc, thanks for developing and maintaining PyTables all this years,
good luck to you and good luck to PyTables. I hope that the strengths of
opensource help this project live on.
Armando.
On Fri, Jun 3, 2011 at 10:18 PM, Antonio Valentino
a_valent...@users.sourceforge.net wrote:
Hi
Hello list. I have a (potentially very big) table in PyTables. I now want to
extract all the unique values of each column. I have tried doing:
dict((name, set(t.colinstances[ind])) for name in t.colnames)
(where t is of course the table), but it is VERY slow.
Is there a faster way?
Armando.
Oh, and it also surprises me that using a dictionary of Nones is faster than
using a set. Maybe python's set type needs some performance optimizations,
but that has nothing to do with pytables.
Armando.
On Tue, May 12, 2009 at 2:00 PM, Armando Serrano Lombillo
arser...@gmail.com wrote:
Ok
Thanks for the quick response. The fix you provided is working for me too.
Armando.
On Fri, Apr 24, 2009 at 9:30 AM, Francesc Alted fal...@pytables.org wrote:
A Thursday 23 April 2009, Francesc Alted escrigué:
Hola Armando,
A Thursday 23 April 2009, Armando Serrano Lombillo escrigué
