clustering power tanya discussed last meeting simulate secondary power curve need correlated jump sizes totally different current secondary price curve simulation assume perfect correlation also totally different secondary gas basis curve simulation based hedging ratio two issues side need resolve 1 want resolve power basis curve issue currently power position basis curve actually price positions hard coding power basis add basis corresponding region curve trying remove hard coding asking loading price curve basis locations 2 true power f curves curves looks similar basis curves currently directly map f curves corresponding region curves would also prefer load price curves instead price differences research need jump size correlations clearly involve many new development unless want use simpler way simulate secondary power curves regards winston original message tamarchenko tanya sent monday april 16 2001 9 17 lew jaesoo cc gorny vladimir jia winston kaminski vince subject clustering power jaesoo discussed last week wednesday meeting please implement clustering power curves geographical region involves following 1 deciding together risk control many geographical regions want use enron curves belong region 2 deciding together risk control choose core curves region decision maid based position size b statistical analysis might considerations 3 regression analysis curve versus corresponding core curve winston possible run var clustering results obtained jaesoo clustering done sas wait stage fresh status tanya