This is not my daily blogpost, but something I found while searching for different plots just copy this code and post it in your Rserve (or what you use to give in R commands) install.packages("onion") require(onion) data(bunny) p3d(bunny,theta=3,phi=1...
Monthly Archives: March 2011
Radiation levels at Fukushima
From BWR The above graph is derived from data scraped from TEPCO press releases. Every hour or so for the first few days of the crisis, a TEPCO van would record radiation (probably Beta/Gamma, but the translation is unclear) at … Continue reading →
No simulation is complete without a gif
I promise this is my last post on the now week and a half old π pay! Building on the last post, I figured I could show how convergence actually works in the estimation algorithm. If you’ll recall, we plotted … Continue reading →
Predicting R models with PMML: Revolution R Enterprise and ADAPA
The recently announced Revolution Analytics / Zementis partnership goes a long way towards demonstrating how R fits into big-league production environments. A frequent complaint against R is that although R is fine prototyping tool it is not able to handle production environments. Well, that’s just not true. In fact, it is straightforward to build a model in R, translate...
R Still On Top
According to the Google Ngram corpus, R is still the top rated statistical software package. Ok, I’m just kidding. That plot is worthless. All the data are from books published between the years 1890 and 2008, and none of those software packages wou...
Silver Is A Weighted Coin
editorial note: there is an error in the code explained below the code. When you flip a quarter, you normally assume the coin is fair and that there is a 50% chance of getting either heads or tails. Option pricing assumes the world of trading is f...
Generate MP3 waveforms with Ruby and R
I blame Rully for this. If it wasn’t for him I wouldn’t have been obsessed with this and spent a good few hours at night figuring it out last week. It all started when Rully mentioned that he knew how many beeps there are in the Singapore MRT (subway system) ‘doors closing’ warning. There are 
Day #11 R graphs as nodes
Today my company supervisor isn’t at work so he gave me (and the other students) a task-list. I have to check the availability of the following R scripts. Whether or not they work how they should in Knime. While doing these tasks, at the main tim...
The Many Uses of Q-Q Plots
My last four posts have dealt with boxplots and some useful variations on that theme. Just after I finished the series, Tal Galili, who maintains the R-bloggers website, pointed me to a variant I hadn’t seen before. It's called a bee...
Yeah Sure, Maybe, Well … Okay
Whoever wrote the book on statistics, probably avoided getting a proper education in literature. At least that's my null hypothesis. The cryptic and awkward presentation of probabilities common amongst the Frequentists (no, not the Latin American Socia...
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
