Re: [Pytables-users] Implementing a set-valued column

2011-01-30 Thread Anthony Scopatz
Hey Tom, I am not sure what you are asking is possible. I don't think sets are regular enough* container type. Perhaps if you had a sets of consistent (or maximal) length and primitive data type, this kind of thing would be possible. (Eg every set in your column only contained integers and has l

Re: [Pytables-users] Implementing a set-valued column

2011-01-30 Thread Tom Fawcett
Hi Anthony, Thanks for your response. I suspect you are right that sets are not regular enough. Are all column types of fixed size? Is this a necessary condition for pytables? I though I’d seen an example of variable-length strings with pytables, but I maybe I was mistaken. I was thinking

Re: [Pytables-users] Implementing a set-valued column

2011-01-30 Thread Anthony Scopatz
Hey Tom, On Sun, Jan 30, 2011 at 8:01 PM, Tom Fawcett wrote: > Thanks for your response. I suspect you are right that sets are not > regular enough. Are all column types of fixed size? Is this a necessary > condition for pytables? I though I’d seen an example of variable-length > strings wit