Random Sequence of Heads and Tails: For R Users
Rick Wicklin on the SAS blog made a post today on how to tell if a sequence of coin flips were random. I figured it was only fair to port the SAS IML code over to R. Just like Rick Wicklin did in his...
View ArticleClik here to view.
Beta Distribution and the NJ U.S. Senate Election
The beta distribution is highly flexible distribution and applies to many situations and environments. The beta distribution applies well when there are percentages. The upcoming New Jersey U.S. Senate...
View ArticleClik here to view.
Tracking the 2013 Hurricane Season
With it nearing the end of hurricane season it’s only appropriate to do a brief summary of the activity this year. It’s been a surprisingly low-key season as far as hurricanes are concerned. There...
View ArticleClik here to view.
Spatial Clustering With Equal Sizes
This is a problem I have encountered many times where the goal is to take a sample of spatial locations and apply constraints to the algorithm. In addition to providing a pre-determined number of K...
View ArticleClik here to view.
Some Options for Testing Tables
Contingency tables are a very good way to summarize discrete data. They are quite easy to construct and reasonably easy to understand. However, there are many nuances with tables and care should be...
View ArticleClik here to view.
Probabilities and P-Values
P-values seem to be the bane of a statistician’s existence. I’ve seen situations where entire narratives are written without p-values and only provide the effects. It can also be used as a data...
View ArticleClik here to view.
Connecting TOAD For MySQL, MySQL Workbench, and R to Amazon AWS EC2 Using SSH...
I often use Amazon EC2 to store and retrieve data when I need either additional storage or higher computing capacity. In this tutorial I’ll share how to connect to a MySQL database so that one can...
View ArticleClik here to view.
The Birthday Simulation
Nothing novel or unique about this problem. This just extends the problem to measure the probability to three or more people sharing the same birthday using simulation approaches. Though there are...
View ArticleClik here to view.
Recent Articles
I have uploaded a few papers I have written and presented at some national conferences over the past several years. Currently, all the articles relate to election research.
View ArticleClik here to view.
R Code for Election Posterior Distribution From a Random Sample
I wrote a summary article a couple of years ago discussing some probability aspects of the 2012 Presidential general election with a particular focus on exit polling. I’ve had a few people email me...
View Article