Hi, I'm looking for any information on calculating and using Shapley Values in a TURF context. A paper was presented at an S-Plus conference about this: Conklin M., Lipovetsky S. Modern Marketing Research Combinatorial Computations: Shapley Value versus TURF Tools, Proceedings of 1998 International S-Plus User Conference, Oct. 8-9, 1998, Washington, DC, MathSoft Inc. Does anyone have this paper? Any functions to implement Shapley values in R (or S+)? I wrote a TURF function that works well, but now I need to calculate Shapley Values. Any help with is is appreciated. Thanks, Walt -- ________________________ Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 ________________________ (V) 609-936-8999 (F) 609-936-3733 dataanalytics at earthlink.net www.dataanalyticscorp.com