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Stephen F. Elston, Managing Director of Quantia Analytics, LLC is a big data geek and data scientist, with over two decades of experience using R and S/SPLUS for predictive analytics and machine learning. He holds a PhD degree in Geophysics from Princeton University. He has been developing, selling and supporting analytics software for over two decades. Formally he led R&D for the S-PLUS companies and is a cofounder of FinAnalytica, Inc. He creates solutions for financial market and credit risk, trading analytics, wireless telecom, and fraud prevention.