123 reputation
4
bio website blog.nu42.com
location Ithaca, NY
age 45
visits member for 4 years, 3 months
seen Nov 22 at 18:00

ν42 is my programming blog. You can also find me on Twitter, LinkedIn, GitHub, O'Reilly's programming blog, CPAN, Perltricks.com, and Google+.

I am a consultant with a Ph.D. in Economics, and a passion for programming. I picked up my first language, Z-80 assembly, more than three decades ago. Since then, I have worked with a variety of programming languages such as APL, C, Pascal, Fortran, C++, Python, Ruby, but my most favorite is Perl by far. Recently, I have been working on gaining a decent understanding of Ocaml and F#.

As an economist, I mostly work on health care related projects these days, focusing on both pricing structures, and productivity improvements. My dissertation was in the field of experimental economics, and I am an expert in applied microeconomics, data analysis, econometrics, and statistics. I have been using SAS since 1995, Stata since it came out, and occasionally dabble in MatLab/Octave and R. With the data sets I am using, the fact that SAS does not need to hold the data set in memory is a huge advantage.

On the development side, I maintain a few packages on CPAN, try to contribute to others as much as I can.

I am available for one-on-one coaching, training, codebase analysis and evaluation, forensic analysis, and other development related consulting projects as well. If you have a large data set which you do not want to have tortured at the hands of significance seeking, let me know.

I am a member of the American Economic Association, Economic Science Association, and American Society of Health Economists.

How to Say in Turkish is a pet project of mine.

Unur.com is my long-time personal web site. I occasionally post new photos there.

All original source snippets I post on Stackoverflow.com, and other sites in the StackExchange network are dedicated to the public domain. If you do find value in my answers, I would very much appreciate an attribution and acknowledgement where possible.


May
14
revised Why is cos(90)=0.4 in WebGL?
Fix spelling of summarize
May
14
suggested suggested edit on Why is cos(90)=0.4 in WebGL?
Feb
11
awarded  Teacher
Oct
19
awarded  Supporter
Aug
9
comment How to determine if coin comes up heads more often than tails?
The standard deviation of the sampling distribution of counts for sample size 24000 is $\sqrt{24000 x 0.5 x 0.5}$ That is, about 48% of all samples of size 24000 will yield a count of heads between 11950 and 12950. And, 95% of sample proportions will be between .494 and .506. That's due to the CLT.
Aug
8
revised How to determine if coin comes up heads more often than tails?
added 251 characters in body
Aug
8
comment How to determine if coin comes up heads more often than tails?
@Pete: Why would 12,012 heads after 24,000 flips be fishy? I just asked my computer to flip the coins and got 11,996. How else would the LLN work?
Aug
8
comment How to determine if coin comes up heads more often than tails?
@Pete I did not suggest that the set of people who flipped a coin many times to be limited to the three I mentioned. Those are the ones that I know are documented. However, I hope you would agree that FEW would be the appropriate adjective to describe the number of people who have tossed the same coin repeatedly that many times. I used to assign a homework where students were required to toss a coin 20-30 times. I know most of them could not be bothered with that.
Aug
8
revised How to determine if coin comes up heads more often than tails?
edited body
Aug
8
awarded  Editor
Aug
8
revised How to determine if coin comes up heads more often than tails?
added 7 characters in body
Aug
8
answered How to determine if coin comes up heads more often than tails?
Aug
8
awarded  Autobiographer