I know it uses the SAS language, a bit like R uses Splus programming language. But what are WPS limitiations? Can you process 50 million rows in WPS like you would do with SAS? Can you create/use hash tables and optimized sorting (with keys) as in SAS 9? Can you run WPS in batch mode? On Windows/Cygnus? What are the main statistical procedures that WPS does not have?
What are the typical applications WPS is used for?