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 am having issues with lubridate package, hence decided to update R version to R 3.0.1. In our organization even getting an open source application require us to go through a...
Gadka na SERze
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”...
Dora’s Choice
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...
A question of model uncertainty
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...
Bay Area RUG Talk on 3/17
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...
RQuantLib 0.3.12
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...
PK calculation of IV and oral dosing in JAGS
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....
Sustainability of water use in agriculture
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...
Analysis of HR Emails
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...
colorRampPaletteAlpha() and addalpha() – helper functions for adding transparency to colors in R
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...
RcppArmadillo 0.4.100.2.1
Conrad made a first bug-fix release 4.100.2 for Armadillo, his templated C++ library for linear algebra, yesterday. See below for details on the the small set of changes.This was quickly wrapped up...
Developer snapshots of #sjPlot-package now on #Github #rstats
Finally, I managed to setup a GitHub repository. From now on, the latest developer snapshot of my sjPlot-package will be published right here: https://github.com/sjPlot/devel. Please post issues there, download...
RcppEigen 0.3.2.1.0 and 0.3.2.1.1
Shortly after I prepared the bug-fix / maintenance release 0.3.2.0.3 of RcppEigen, the code based was updated to the recent Eigen release 3.2.1 by Doug Bates. I wrapped this up in release...
Ever wonder how popular your favorite R functions are?
How's that fried pickle sandwich treating you? Perhaps your taste in R functions are less bizarre than your taste in R commands?Now you can easily find out using this...
A Hack to Create Matrices in R, Matlab style
The Matlab syntax for creating matrices is pretty and convenient. Here is a 2x3 matrix in Matlab syntax where , marks a new column and ; marks a new...
R 3.0.3 is now available
R-core member Peter Dalgaard announced yesterday that R 3.0.3 is now available. This is the final update to the R 3.0 series, and includes several small but handy new...
Hyperthreading FTW? Testing parallelization performance in R.
Alright, let's test some parallelization functionalities in R.The machine:MacBook Air (mid-2013) with 8 GB of RAM and the i7 CPU (Intel i7 Haswell 4650U). This CPU is hyper-threaded, meaning (at...
RUG-Philippines Meetup: Markov Switching Models in R
To the R users based in the Philippines, there will be upcoming meetup, here are the details:topics: Markov Switching Models in R by Ohly Santos ...
Advances in scalable Bayesian computation [day #4]
![Advances in scalable Bayesian computation [day #4]](http://xianblog.files.wordpress.com/2012/03/dscn2538.jpg?w=450&h=253)
Final day of our workshop Advances in Scalable Bayesian Computation already, since tomorrow morning is an open research time ½ day! Another “perfect day in paradise”, with the Banff Centre...
Analytics Software Popularity Update: Counting Blogs, Simplifying Job Searches
My latest update to The Popularity of Data Analysis Software is an attempt to use blog counts to estimate the popularity of analytics software. While I was able to...
Using R: common errors in table import
I’ve written before about importing tabular text files into R, and here comes some more. This is because I believe (firmly) that importing data is the major challenge for...
Poverty and Crime in Mexico – Interactive Map
How safe is Mexico? That is a frequent question people ask me. There is even website about it (see this blog post). So I’ve decided it was time to go...
Getting Started with Hidden Markov Models in R
by Joseph Rickert In addition to the considerable benefit of being able to meet other, like-minded R users face-to-face, R user groups fill a niche in the world of...
R-users.com: invite fellow R-users to Jobs, conferences, and R-projects
Dear R users, I am happy to officially announce a new website called R-users.com. The idea of the site is that community members will invite other R users to...
Air quality, weather analysis & latent feature modelling @RBelgium
Within 2 weeks on Thursday, March 20, The RBelgium R user group is holding its next Regular meeting in Brussels for which this is the schedule:** Analysis and visualisation...
Advances in scalable Bayesian computation [day #3]
We have now gone over the midpoint of our workshop Advances in Scalable Bayesian Computation with three talks in the morning and an open research or open air afternoon....
Near-zero variance predictors. Should we remove them?
Datasets come sometimes with predictors that take an unique value across samples. Such uninformative predictor is more common than you might think. This kind of predictor is not only...
A simple R bootstrap function for beginners
I teach some introductory stats classes with SPSS, and one of the frustrations for me is that you have to pay an extra wad of cash to do any...
Advances in scalable Bayesian computation [day #2]
And here is the second day of our workshop Advances in Scalable Bayesian Computation gone! This time, it sounded like the “main” theme was about brains… In fact, Simon...
Plotly: collaborative, publication-quality graphing. 
