I have a database containing all the football tournament, however I want only to filter out all the pairwise events. Briefly: If A matches B & B matches A, we reserve the two tournament, otherwise forsake this tournament. Please help me, thankx.
using R selecte data record?
2 messages · chalie epps, David Winsemius
On Nov 11, 2009, at 8:53 PM, chalie epps wrote:
I have a database containing all the football tournament, however I want only to filter out all the pairwise events. Briefly: If A matches B & B matches A, we reserve the two tournament, otherwise forsake this tournament.
Sounds like you might want an inner join: ?merge
David Winsemius, MD Heritage Laboratories West Hartford, CT