This post is a call for both R community members and R-bloggers, to come and help make The R Programming wikibook be amazing.
The R Programming wikibook is not just another one of the many free books about statistics/R, it is a community project which aims to create a cross-disciplinary practical guide to the R programming language. Here is how you can join:
It appears that just days ago, Google Tech Talk released a new, one hour long, video of a presentation (from June 6, 2011) made by one of R’s community more influential contributors, Hadley Wickham.
This seems to be one of the better talks to send a programmer friend who is interested in getting into R.
Talk abstract
Data analysis, the process of converting data into knowledge, insight and understanding, is a critical part of statistics, but there’s surprisingly little research on it. In this talk I’ll introduce some of my recent work, including a model of data analysis. I’m a passionate advocate of programming that data analysis should be carried out using a programming language, and I’ll justify this by discussing some of the requirement of good data analysis (reproducibility, automation and communication). With these in mind, I’ll introduce you to a powerful set of tools for better understanding data: the statistical programming language R, and the ggplot2 domain specific language (DSL) for visualisation.
The results of the 2013 KDNuggets software poll are in, with RapidMiner and R in a near-tie for first place. Of a record 1880 respondents, 737 reported using Rapid-I RapidMiner/RapidAnalytics, and 704 reported using R. Excel came in third: with 527 respondents, it was the lone commercial tool in the top 5. You can see the top 10 responses in the table below. […]
I have written a little function that allows users to run R scripts out of Dropbox directly from any location. It was aided by this post on biobucket. The reason I am particularly interested in this feature is because I am often using a ser... […]
The Frisch–Waugh–Lovell (FWL) theorem is of great practical importance for econometrics. FWL establishes that it is possible to re-specify a linear regression model in terms of orthogonal complements. In other words, it permits econometricians to partial out right-hand-side, or control, variables. This is useful in a variety of settings. For example, there m […]
A Armadillo release 3.900.0 was provided by Conrad yesterday. It has been rolled into a new RcppArmadillo release 0.3.900.0 which is now on CRAN and in Debian.It has a number of nice changes, mostly on the performance side of things (see below) an... […]
Since R uses the computer RAM, it may handle only rather small sets of data. Nevertheless, there are some packages that allow to treat larger volumes and the best solution is to connect R with a Big Data environment. This … Continue reading → […]
Next on modelling survival data from Veterinary Epidemiologic Research: semi-parametric analyses. With non-parametric analyses, we could only evaluate the effect one or a small number of variables. To evaluate multiple explanatory variables, we analyze data with a proportional hazards model, the Cox regression. The functional form of the baseline hazard is n […]
Last week, we had a discussion with some colleagues about the fact that – in order to prepare for the SOA exams – we did not have time (so far) to mention results on extreme values in our actuarial program. I did gave an introduction in my nonlife actuarial models class, but it was only an introduction, in three hours, in order to illustrate reinsurance pric […]
Before you can analyze data, it must be in the right form. Join Revolution Analytics and me this June 21st for a 4-hour webinar that shows how to perform the most commonly used data management tasks in R. We will work through … Continue reading → […]
In 2011 I presented at the UseR conference, held in Warwick (UK), a piece of software for easing the learning curve of R for geostatistical analysis. It is a very simple attempt to create an interactive interface in R, by using Python as GUI. F... […]
I'm pleased to announce that the new version 0.80 of PluginR has been just released (as usual, available as a Tiki Mod) with a few minor bugs fixed, and a couple of new interesting features added:PluginR now uses a caching mechanism extending the ... […]