Note: This post is NOT financial advice! This is just a fun way to explore some of the capabilities R has for importing and manipulating data. I recently read a post on ETF Prophet that explored an interesting stock trading strategy in Ex...

One of the most straightforward examples of how we use Bayes to update our beliefs as we acquire more information can be seen with a simple Bernoulli process. That is, a process which has only two possible outcomes. Probably the most commonly thought of example is that of a coin toss. The outcome of tossing

The most recent edition of the Revolution Newsletter is out. The news section is below, and you read the full September edition (with highlights from this blog and community events) online. You can subscribe to the Revolution Newsletter to get it monthly via email. Using Revolution R with Hadoop: Revolution Analytics has released three open-source R packages, making it...

There was another question recently on StackOverflow that I had meant to discuss in a follow-up post here. User deltanovember asked about slow recursive functions and used the very classic Fibonacci number as an example. To recap, Fibonacci number a...

At last month's useR! 2011 conference at Warwick University, there were two talks on the RevoScaleR package for big data statistics in R. The first was a keynote presentation from Revolution Analytics' Chief Scientist, Lee Edlefsen. Here is the overview of his talk, Scalable Data Analysis in R: For the past several decades the rising tide of technology --...

Capabilities of R are definitely unless! After my previous posts about some easy image editing in R (they are here, and here), now is the time to explore if R is capable of sound editing!Just for fun, here I created a function that receives a phone number (or another sequence of numbers), and returns the equivalent melody...

On Wednesday September 21, Revolution Analytics' CTO David Champagne will give a live webinar introducing three new open-source packages for R and Hadoop, which make it possible to work with Hadoop data in R, and bring in-database R analytics to Hadoop. Here are the details: Date: Wednesday, September 21st Time: 10:00AM - 10:30AM Pacific Time Presenter: David Champagne, Chief...