Quantitative Finance
Statistical Computing in R
Heuristic Optimization
About Burns statistics
Specialties include:
Consulting
Pat has worked, mainly in finance, for over thirty years both as a consultant and an employee. We are currently not in the market for new consulting jobs.
Software development
Pat was a lead developer of S-PLUS, the precursor to the R language, in its early years. His tasks included adding functionality (such as principal components and robust estimation in several settings), finding and fixing bugs, and documentation. He has been a user of R for over 25 years.



