Re: [Pytables-users] PyTables Error Reading Large File

2010-07-21 Thread Francesc Alted
2010/7/21 Shalom Rav > Hi Francesc, > > I did try previously to work with arrays. If I am not mistaken, I then ran > into a limitation (of pytables?) not allowing say arrays of size > 30,000 (where tables, on the other hand, are not limited in number of rows). > No. *Arrays should not have a li

Re: [Pytables-users] PyTables Error Reading Large File

2010-07-18 Thread Francesc Alted
2010/7/18 Shalom Rav The problem I described got solved. As per the design, would an array of > say 20,000 floats be better than a table (with one field), containing 20,000 > rows of floats? (suppose we define "better" in terms of writing time / read > time). > Maybe the difference is not large

Re: [Pytables-users] PyTables Error Reading Large File

2010-07-17 Thread Shalom Rav
Hi, Thank you so much for your reply. The problem I described got solved. As per the design, would an array of say 20,000 floats be better than a table (with one field), containing 20,000 rows of floats? (suppose we define "better" in terms of writing time / read time). Thank you. On Thu, Jul 1

Re: [Pytables-users] PyTables Error Reading Large File

2010-07-15 Thread Francesc Alted
A Thursday 15 July 2010 19:00:08 Shalom Rav escrigué: > Hi, > > I created a PyTables file containing circa 15000 groups, where in each of > these groups, there is one single table, defined using the following class: > > > class *SimpleScheme*(tables.IsDescription): > > value = tables.Floa

[Pytables-users] PyTables Error Reading Large File

2010-07-15 Thread Shalom Rav
Hi, I created a PyTables file containing circa 15000 groups, where in each of these groups, there is one single table, defined using the following class: class *SimpleScheme*(tables.IsDescription): value = tables.Float32Col(pos = 0, dflt = numpy.NaN) Each such a table has about 1500 rows