George Sakkis wrote: > After a brief search, I didn't find any python package related to OLAP > and pivot tables. Did I miss anything ? To be more precise, I'm not so > interested in a full-blown OLAP server with an RDBMS backend, but > rather a pythonic API for constructing datacubes in memory, slicing and > dicing them, drilling down or up dimensions and exposing them in some > suitable form to a presentation layer. I've hacked a first cut of a > pivot table implementation and an XHTML generator that produces > hierarchical html tables but it's not particularly general or easily > extensible so far. Is there any interest at all on a pythonic version > of something like JOLAP or XMLA ? > > George >
I have a few applications that require the generation of large numbers of contingency tables from a higher-dimensional base table. The approaches I've tried (Numeric arrays / dictionary-based sparse arrays / various caching schemes / searches on subset lattices for previously generated 'super'-tables that can be marginalised from etc.) still represent major bottlenecks. So, I guess I would be interested. Duncan -- http://mail.python.org/mailman/listinfo/python-list
