[Pytables-users] dates and space

2013-08-05 Thread Oleksandr Huziy
Hi Pytables users and developers: I have a few questions to which I could not find the answer in the documentation. Thank you in advance for any help. 1. If I store dates in Pytables, does it mean I could write queries like table.where('date.month == 5')? Is there a common way to pass from

[Pytables-users] modifying a table column

2013-08-27 Thread Oleksandr Huziy
Hi All: I have a huge table imported from other binary files to hdf, and I forgot to multiply the data by a factor in one case. Is there an easy way to multiply a column by a constant factor using pytables? To modify it in place? Thank you -- Sasha

Re: [Pytables-users] modifying a table column

2013-08-27 Thread Oleksandr Huziy
, 2013 at 11:44 AM, Oleksandr Huziy guziy.sa...@gmail.comwrote: Hi All: I have a huge table imported from other binary files to hdf, and I forgot to multiply the data by a factor in one case. Is there an easy way to multiply a column by a constant factor using pytables? To modify it in place

Re: [Pytables-users] modifying a table column

2013-08-27 Thread Oleksandr Huziy
= varTable.cols.field expr = tb.Expr(c * m, uservars = {c: c, m: coef }) expr.set_output(c) expr.eval() varTable.flush() h.close() Aha, this is cool. Thanks Anthony. Cheers -- Sasha On Tue, Aug 27, 2013 at 11:44 AM, Oleksandr Huziy guziy.sa...@gmail.com wrote: Hi All: I have a huge