With print() If you are an advanced R user, you probably know the lattice and the ggplot2 packages. They allow you to plot elegant graphics with less code (Hocking, 2009 and Sueur, 2010). If you know these two packages, you should hardly use plot() for your graphs. If you read my article ... [Read more...]

This is an edited version of A Direct Marketing In-flight Forecasting System. The original article was written by Shannon Terry and Ben Ogorekm, Nationwide Insurrance, in order to enter the “Applications of R in Business” contest organised by Revolution Analytics. This is the winning entry of the contest. I added ... [Read more...]

FastRWeb is an infrastructure that allows any webserver to use R scripts for generating dynamic content, such as web pages and graphics. In this post, you’ll learn how to install and set up FastRWeb on a Mac. This tutorial is expendable to any Unix-like operating system. It is an ... [Read more...]

Today a lot of great mails arrived at my inbox. In one of them I was reading I’ve just added your feed to the site. Where did this mail come from? The sender of the email was Tal Galili. He is a researcher in BioStatistics at the Tel Aviv ... [Read more...]

(A guest post by Camiel de Koning) ————– When trying to replicate, verify or extend empirical research of others, a researcher generally [Read more...]

In preparation for a talk, I updated Knuth's original diagram in Donald E. Knuth. Literate programming. The Computer Journal, 27(2):97–111, May 1984. The new diagram is Sweave specific. Click the Sweave diagram for a PDF version, or right-click and select 'save image as' for the PNG version. Permission is granted for any ... [Read more...]

There is a nice R module for apache: rApache. So you can easily publish statistics. [Read more...]

Gompertz Model Visualization # Gomperz growth function gomp [Read more...]

Look at just the first digit and the number of digits. science: 32914, 11566, 4989, 3743, 968, 814, 673, 482, 286, 2811 black and white: 1694, 1167, 1108, 988, 919, 639, 596, 591, 580, 544 lol: 22627, 18100, 17688, 14374, 13459, 12045, 4711, 3779, 36... [Read more...]

I recently wrote an email with an attached LZMA archive. It was immediately answered with something like: "What are you doing? I had to boot linux to open the file!" First of all I don't care whether user of proprietary systems are able to read open formats, but this answer ... [Read more...]

Ladies and gentlemen, waiting is finally over. I'm proud to introduce Rumpel! [Read more...]

See a the poll here by Gabriel Rossman at Code and Culture. I voted for R and ‘igraph’. If you use R you are getting access to all the other wonderful things that come with R. Using specialized package, like Pajek, UCINET etc requires constant going back and forth between ... [Read more...]

I just encountered this website http://onertipaday.blogspot.com/: One R tip per day. Very nice collection of R tips. [Read more...]