A new version of OpenCPU was released to CRAN and Launchpad. Besides some minor bugfixes, the single-user has better support for configuration. By default, the single-user server will now load configuration from the following file:path.expand("~/.opencpu.conf")If this file does not exist, the default configuration is used.Future plansThis is likely the...
QuantLib release 1.4 came out a couple of days ago. Sticking with standard practice, I immediately updated the Debian packages I have been maintaining for over a dozen years...
Google Summer of Code opened for students on Monday, March 10, more than a month earlier than last year. If you weren’t following the announcements and that deadline caught...
Now that our ‘Learning R’ -series is coming to an end (for those who missed it, have a look at our Twitter or Facebook ), it is time to...
The Swarm Lab presents a nice comparison of R and Python code for a simple (read ‘one could do it in Excel’) problem. The example works, but I was...
iNaturalist projects are collection of records posted on iNatualist. Now that we have a R package rinat from rOpenSci I thought of playing around with the data. Here is...
Mango Solutions invite presentations for the EARL (Effective Applications of the R Language) Conference which will be held in London on the 16-17th September 2014. The EARL Conference provides...
Has learning R been driving you a bit crazy? If so, it may be that you’re “lost in translation.” On April 21 and 23, I’ll be teaching a webinar,...
After nearly 4 years of developing googleVis on Google Code with SVN we decided to move to GitHub. The main reason was that Google stopped the facility of hosting...
I want to follow up the Intraday data post with an example of how you can capture Intraday data without too much effort by recording 1 minute snapshots of...
![where did the normalising constants go?! [part 1]](http://xianblog.files.wordpress.com/2012/03/pict0850.jpg?w=450&h=337)
When listening this week to several talks in Banff handling large datasets or complex likelihoods by parallelisation, splitting the posterior as and handling each term of this product on...
R 3.0.3 (codename “Warm Puppy) was released several days ago. The full list of new features and bug fixes is provided below. Upgrading to R 3.0.3 You can download...
We’re going to be starting a Stan “model of the P” (for some time period P) column, so I thought I’d kick things off with one of my own....
Philip Guo, who writes a wonderful blog on his views and experiences of academia – including a lot of interesting programming stuff – came up with a research programming version of...
Starting with version 1.3.1 of RSiteCatalyst, you can now access the real-time reporting capabilities of the Adobe Analytics API through a familiar R interface. Here’s how to get started… GetRealTimeConfiguration...
This post provides technical details about the making of my book “Displaying time series, spatial, and space-time data with R”, …Sigue leyendo →
Two years ago, motivated by a proposal from John Kimmel, Executive Editor at Chapman & Hall/CRC Press, I started working …Sigue leyendo →
Han, Y.F., and Zhou, G.F. have an interesting working paper on the performance of a trend factor they proposed:QuotationIn this paper, we propose a trend factor to capture cross-section...
I received this email yesterday: I have been using your ‘forecast’ package for more than a year now. I was on R version 2.15 until last week, but I...
In the Intraday Backtest post I showed an example of loading and working with Forex Intraday data from the FXHISTORICALDATA.COM. Recently, I came across another interesting source of Intraday...
These are slides from the very first SER meeting – an R user group in Warsaw – that took place on February 27, 2014. I talked about various “lifehacking”...
Arithmetic is being able to count up to twenty without taking off your shoes (Mickey Mouse) On her last mission, Dora The Explorer sails down the Amazon river to...
It has been several months since my last post on classification tree models, because two things have been consuming all of my spare time. The first is that I...
I'm making my yearly pilgrimage to San Fransico to teach at PAW.I'll also be giving a short talk at the Bay Area R Users Group on model tags...
A new bug-fix / maintenance release RQuantLib 0.3.12 is now on CRAN and in Debian.While adding the plugin feature, I was too optmistic about finding the quantlib-config script. This is now...
I am examining IV and oral dosing of problem of Chapter 6, Question 6 or Roland and Tozer Rowland and Tozer (Clinical pharmacokinetics and pharmacodynamics, 4th edition) with Jags....
AQUASTAT, developed and maintained by the Food and Agriculture Organization of the UN, is the global database that gives quantitative information on water resources and withdrawal of water for...
This study has made an attempt to understand, what HR's in a day dealt with at different working hours, by analyzing their emails from a particular organization. Sample size...
colorRampPalette is a very useful function in R for creating colors vectors to use as the palette, or to pass as an argument to a plotting function; however, a...
Plotly: collaborative, publication-quality graphing. 
