THIS IS NOT INVESTMENT ADVICE. YOU ARE RESPONSIBLE FOR YOUR OWN GAINS AND LOSSES. I spend my days and nights wondering what a bond manager should do if he/she doesn’t like bonds, but also cannot sit in 0% cash. I generally dislike spreads...

10. Can't crack that hard Sudoku problem?? Use R!9. Want to pick a skill that will give you an early adopter advantage?? Learn R! It is the leading open source statistical and data analysis programming language, and is heating up! 8. Need to ...

10. Can't crack that hard Sudoku problem?? Use R!9. Want to pick a skill that will give you an early adopter advantage?? Learn R! It is the leading open source statistical and data analysis programming language, and is heating up! 8. Need to ...

This post examines conditional heteroskedasticity models in the context of daily stock price data for Allied Irish Banks (AIB), specifically how to test for conditional heteroskedasticity in a series, how to approach model specification and estimation when time-varying volatility is present, and how to forecast with these models; all of this is done in R,

In case you missed them, here are some articles from April of particular interest to R users. The Heritage Health Prize, a competition to build predictive models for hospitalization with USD$3.2M in prizes, is open. The Inside-R.org community site now provides the ability to search and view the help files for CRAN packages. Revolution R Enterprise 4.3 released: R...

While we were at R/Finance in Chicago over the weekend (more on that later), it was a great pleasure to meet in person Paul Teetor, author of the R Cookbook (published by O'Reilly). If you haven't picked it up yet, I recommend checking it out: if you already have a basic familiarity of the R syntax, but want to...