Data mining analyst Yuval Marom has just started a new user group for users of R in Melbourne (the one in Australia). He says: The group is open to people with all levels of experience with R, including complete beginners and complete experts, and people from all industries - private, government, and academic. The main purpose of the group...
R posts in other languages
- 适合初学者的R语言教程
- SAS hat einen neuen Vergleich von SAS und R veröffentlicht
- 实现可重复的统计slides
- О связи между “утечкой мозгов” и объемом пассажирских перевозок
- Новая книга по основам прогнозирования (с использованием R)
- Двухфакторный дисперсионный анализ
- Revolution R Enterprise 6.2 mit neuen Funktionen für hoch performante Analysen auf Big Data
- Third Milano R net meeting: leave a comment
- Photos of the third Milano R net meeting
- Presentations of the third Milano R net meeting
R Plotting tips
Yes...I haven't been updating the blog for a very long while...But I'm really busy with many things right know.... Our paper for the "Cultural Evolution in Spatially Structured Populations" have been accepted so we are currently working on that, and I ...
R Plotting tips
Yes...I haven't been updating the blog for a very long while...But I'm really busy with many things right know.... Our paper for the "Cultural Evolution in Spatially Structured Populations" have been accepted so we are currently working on that, and I ...
Circle packing with R
To visualize the results of a simulation model of woodland trees within R, I needed an algorithm that could arrange a large number of circles within a rectangle such that no two circles overlapped by more than a specified amount. A colleague had approached this problem earlier by sorting the circles in order of descending size, then randomly dropping...
Circle packing with R
To visualize the results of a simulation model of woodland trees within R, I needed an algorithm that could arrange a large number of circles within a rectangle such that no two circles overlapped by more than a specified amount. A colleague had approa...
Asher’s enigma
On his Probability and statistics blog, Matt Asher put a funny question (with my rephrasing): Take a unit square. Now pick two spots at random along the perimeter, uniformly. For each of these two locations, pick another random point from one of the three other sides of the square and draw the segment. What is 
R Chart
Been meaning to write this for awhile...An R-Chart is a statistical quality assurance tool used to determine if a process is stable (and predictable). It is intended to maintain and improve the quality of a process (a more formal definition is av...
useR 2010 at NIST in Gaithersburg
This past week, the annual R user conference useR! 2010 took place at the National Institute of Standards and Technology (NIST) in Gaithersburg, MD (which is a tad northwest of Washington, DC). Kate Mullen and her team of local organizers did a truly...
useR 2010 at NIST in Gaithersburg
This past week, the annual R user conference useR! 2010 took place at the National Institute of Standards and Technology (NIST) in Gaithersburg, MD (which is a tad northwest of Washington, DC). Kate Mullen and her team of local organizers did a truly t...
useR 2010 at NIST in Gaithersburg
This past week, the annual R user conference useR! 2010 took place at the National Institute of Standards and Technology (NIST) in Gaithersburg, MD (which is a tad northwest of Washington, DC). Kate Mullen and her team of local organizers did a truly...
Local R User Group Panel from useR! 2010 (Video)
As I mentioned last week, I will be hosting videos of several of the keynote speakers from this year’s useR! 2010 conference at the video Rchive. As it happens, the first video I was able to upload was the panel discussion we held on starting local R user groups. I have uploaded the video,
useR! 2010 – Local R User Group Panel
Panel discussion about forming local R user groups from useR! 2010. Panelists include, Jim Porzak (San Francisco Bay Area), David Smith (REvolution Analytics), John C. Nash (Ottawa, Canada), Drew Conway (New York City), Szilard Pafka (Los Angeles), M...
How to calculate with dates and hours in R
A while ago I was asked whether calculating with datums and hours is possible in R. Especially, if you added an hours to 23:45 (say Jan 1, 2010) , would R know to jump to the next day – 00:45 (jan 2, 2010)? The answer is yes. Our only job is to tell R in 
Installing rgdal on Mac OS X
The rgdal package contains bindings from R to the GDAL (Geospatial Data Abstraction Library) as well as the PROJ library. It is a dependency for numerous spatial statistics packages. Note that the binaries on the rgdal homepage are outdated — the most up-to-date version of the rgdal package can be found on CRAN. Unsurprisingly, rgdal
Hello world!
Throughout the course of my research, I come across a lot of obstacles and nuisances that are either undocumented or documented poorly. Therefore, I decided to throw up this blog as a repository of sorts to store all of these little tidbits of information with the hope that it will save somebody somewhere a few minutes of
Thoroughly Unusual Itches
I have found myself over the years in a rather awkward situation. I work in old-school, bricks and mortar industry IT shops for the most part. However, I love many open source projects and identify with many of the values of start up cultur...
The counterfactual GPS!
WHAT IF YOUR GPS TOLD YOU WHAT WOULD HAVE HAPPENED IF YOU HAD TAKEN THE OTHER ROUTE? Not long ago, your Decision Science News editor was planning a trip to a book group meeting along with another member. The monthly book group takes place in Cove Neck Long Island, about an hour East of Manhattan.
Why building R packages is good for you
Basically every function you use in R is part of a package (often the base or stats one). Most of the advances routines, such as the differential equations solvers in simecol are brought to R in the form of Fortran (…)
Turning your data into a 3d chart
Some charts are to help you analyse data. Some charts are to wow people. 3d charts are often the latter, but occasionally the former. In this post, we’ll look at how to turn your data into a 3d chart. Let’s use the data from this previous post. Use the code which turns the .csv spreadsheet 
Plaudits for R
I just discovered that R core member Paul Murrell has been maintain a list of plaudits for R: newspaper articles, book reviews, remarks on mailing lists and blogs, and even gratitudes from individual R users. He's collected dozens of entries since 2001 -- great materials here if you ever need more evidence of the awesomeness of R. Paul Murrell:...
Building an R package (under Windows) without C, C++ or FORTRAN code
Why build and R package? It basically boils down to be able to brag at your local pub that a new version of YOUR package is on CRAN as of 7 p.m. CET. But seriously, if you’ve produced some function that other people might benefit (or have ordered them) from using them, like your boss, 
Creating a Presentation with LaTeX Beamer – Equations and tikz
Many presentations created using LaTeX beamer included mathematical equations and these can be easily included in a presentation and in this post we will consider using the tikz package to add various interesting elements to equations, such as lines between text on a slide and part of an equation. Fast Tube by Casper The examples on this
UseR! 2010 day 1
Just a couple of quick notes about the first day of talks at useR! 2010. It's been a jam-packed schedule -- so many good talks to see and people to meet, I just wish I had more time for it all! One stand-out for me so far has been Frank Harrell's keynote lecture Information Allergy, on the dangers of...
Quick scatterplot with associated histograms
R can produce some beautiful graphics, and there are some excellent packages, such as lattice and ggplot2 to represent data in original ways. But sometimes, all you want to do is explore the realtionship between pairs of variables with the minimum of fuss. In this post we’ll use the data which we imported in the 
Update to ‘Basic R’ eBook
(This article was first published on Rmetrics blogs, and kindly contributed to R-bloggers) To leave a comment for the author, please follow the link and comment on his blog: Rmetrics blogs. R-bloggers.com offers daily e-mail updates about R news and tutorials on topics such as: visualization (ggplot2, Boxplots, maps, animation), programming (RStudio, Sweave, LaTeX, SQL, Eclipse, git, hadoop, Web...
BP Oil and Gas Recovery
As mentioned in a previous post, the US Department of Energy has been providing data about the Deepwater Horizon as it becomes available. Recently, the amount of oil and gas recovered was made available. The spreadsheet includes a grap...
Bugs [genuine]
![Bugs [genuine]](http://www.r-bloggers.com/wp-content/uploads/2010/07/bug0008-e1279461593739.jpg?w=198&h=149)
Nothing related with programming, I am afraid! Just a few bugs visiting my passion vine… I find the green bugs quite interesting with their back “engravings”, even though they are most likely pests … Filed under: pictures, ...
My Talk on Animations at useR! 2010 (NIST, Gaithersburg)
As every useR knows, the useR! 2010 conference is being held at NIST in Gaithersburg these days. I have just finished my talk on the R package animation this afternoon. Here are my slides and R code for those who are interested: Have fun, even if you are a PhD! Related Postsalphahull: an R Package
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
