About the author of softRX freeware...

Robert L. (Bob) Obenchain, Ph.D.

Principal Consultant, Risk Benefit Statistics LLC

Biostatistics, Non-randomized Studies, Patient Differential Response,
Treatment Selection Bias and Confounding, Incremental Cost-Effectiveness


Professional Interests:

I continue doing active research and development of methods of adjustment for treatment-selection-bias in non-randomized studies (especially supervised and unsupervised propensity scoring.)

I retired from Eli Lilly in August of 2007, where I was a Senior Research Advisor and a Statistics Group Leader for Health Outcomes Research in the US Medical division, Commercial Information Sciences.  Before my 17 years at Lilly, I was at Glaxo in the Research Triangle Park, NC, for almost 5 years.  Before that, I spent 17 years in the Applied Statistics and Quality Assurance Technology departments at AT&T Bell Labs and Bell Communications Research in New Jersey.  I received my PhD in Mathematical Statistics from the University of North Carolina in Chapel Hill in 1969; my thesis advisors were N. L. Johnson and P. K. Sen..

I was elected a fellow of the American Statistical Association in 1997.  I now serve as a Research Fellow at the National Institute of Statistical Sciences (NISS) in Research Triangle Park, North Carolina, as a Methods Partner with the Observational Medical Outcomes Partnership (OMOP) of the Foundation of the National Institutes of Health, and as an Adjunct Professor of Biostatistics, IU Medical School, Indianapolis.


Hobbies:

Bob, Tiffany and Lynne ...at Cannon Mountain, NH, in 1986.

Tiffany, now 28, recently received her MBA from Harvard and got married to Spencer Crawford. They both work in Chicago and, for some reason (possibly related to future potential for spoiling grandchildren), Lynne wants us to relocate soon to a western suburb of Chicago.

I'm now much too old and fat to ski well, but nothing seems to be able to stop me from trying. It's still much more fun for me than GOLF ever was!!!

  • Wine Appreciation

    Our wine cellar has stopped growing!!! Twelve years ago, I started collecting 1997s and later vintages - primarily from California, Washington State and Australia. Those wines are now fully mature and quite enjoyable.

  • Personal Computer Software Authorship

    I understand that some people actually get paid to do this. But it's just a hobby for me; guess I'm a true hacker!  I started out by learning C at Bell Labs and authoring more than 20 freeware MS-DOS applications with CGA/VGA graphics for Statistical Process Control which I uploaded to CompuServe PCAPP, Library 13, Engr/Tech/Sci between 1988 and 1997. Later, I developed a few Windows applications using the C API, but by then I had gradually shifted to concentrate upon developing functions and scripts for major statistical analysis packages: SAS/IML, Gauss, Stata, XLisp-Stat and, most recently, R (packages USPS, ICEinfer and RXshrink.)

  • Shootin "Golf"s

    I have finally given up trying to play this frustratingly "evil" game. The emotional growth necessary to reach this decision came painfully ...when both sets of clubs I had inherited from my dad were stolen from our garage.