Blog Archives

Minimal examples help

February 24, 2015
By
Minimal examples help

The other day I got stuck working with a huge data set using data.table in R. It took me a little while to realise that I had to produce a minimal reproducible example to actually understand why I got stuck in the first place. I know, this is the mantr...

Read more »

Reading Arduino data directly into R

February 17, 2015
By
Reading Arduino data directly into R

I have experimented with reading an Arduino signal into R in the past, using Rserve and Processing. Actually, it is much easier. I can read the output of my Arduino directly into R with the scan function. Here is my temperature sensor example again:And...

Read more »

What have a physicist, an entrepreneur and an actor in common?

February 10, 2015
By
What have a physicist, an entrepreneur and an actor in common?

They all try to do something new and take the risk to be seen as a fool.Over the last few days I stumbled over three videos by a physicist, an entrepreneur and an actor, which at first have little in common, but they do. They all need to know when they...

Read more »

R in Insurance 2015: Registration Opened

February 3, 2015
By
R in Insurance 2015: Registration Opened

The registration for the third conference on R in Insurance on Monday 29 June 2015 at the University of Amsterdam has opened. This one-day conference will focus again on applications in insurance and actuarial science that use R, the lingua franca for ...

Read more »

googleVis version 0.5.8 released

January 27, 2015
By
googleVis version 0.5.8 released

We released googleVis version 0.5.8 on CRAN last week. The update is a maintenance release for the forthcoming release of R 3.2.0. Screen shot of some of the Google ChartsNew to googleVis? The package provides an interface between R and the Google Char...

Read more »

Communicating Risk and Uncertainty

January 20, 2015
By
Communicating Risk and Uncertainty

David Spiegelhalter gave a fascinating talk on Communicating Risk and Uncertainty to the Public & Policymakers at the Grantham Institute of the Imperial College in London last Tuesday.In a very engaging way David gave many examples and anecdotes fr...

Read more »

Extended Kalman filter example in R

January 13, 2015
By
Extended Kalman filter example in R

Last week's post about the Kalman filter focused on the derivation of the algorithm. Today I will continue with the extended Kalman filter (EKF) that can deal also with nonlinearities. According to Wikipedia the EKF has been considered the de facto sta...

Read more »

Kalman filter example visualised with R

January 6, 2015
By
Kalman filter example visualised with R

At the last Cologne R user meeting Holger Zien gave a great introduction to dynamic linear models (dlm). One special case of a dlm is the Kalman filter, which I will discuss in this post in more detail. I kind of used it earlier when I measured the tem...

Read more »

Notes from the Kölner R meeting, 12 December 2014

December 16, 2014
By
Notes from the Kölner R meeting, 12 December 2014

Last week's Cologne R user group meeting was the best attended so far, and it was a remarkable event - I believe not a single line of R code was shown. Still, it was an R user group meeting with two excellent talks, and you will understand shortly why ...

Read more »

Next Kölner R User Meeting: Friday, 12 December 2014

December 9, 2014
By
Next Kölner R User Meeting: Friday, 12 December 2014

The next Cologne R user group meeting is scheduled for this Friday, 12 December 2014.We have an exciting agenda with two talks on Julia and Dynamic Linear Models:Introduction to Julia for R UsersHans Werner BorchersJulia is a high-performance dynamic p...

Read more »


Subscribe

Email:

  Subscribe