Monitoring Productivity II – the Others

September 30, 2011 | al3xandr3

In previous Monitoring Productivity Experiment post I looked into the hours I spent in computer, now will look into the hours Others spend in computer, which is far more interesting :) To find things like what day people spend more time on computer, ho... [Read more...]

Friday fun projects

May 14, 2011 | nsaunders

What’s a “Friday fun project”? It’s a small computing project, perfect for a Friday afternoon, which serves the dual purpose of (1) keeping your programming/data analysis skills sharp and (2) providing a mental break from the grind of your day job. Ideally, the skills learned on the project are ... [Read more...]

Annotated source code

February 1, 2011 | Christopher Bare

We programmers are told that reading code is a good idea. It may be good for you, but it's hard work. Jeremy Ashkenas has come up with a simple tool that makes it easier: docco. Ashkenas is also behind underscore.js and coffeescript, a dialect of ja... [Read more...]

Parsing and plotting time series data

January 15, 2011 | csgillespie

This morning I came across a post which discusses the differences between scala, ruby and python when trying to analyse time series data. Essentially, there is a text file consisting of times in the format HH:MM and we want to get an idea of its distribution. Tom discusses how ...
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Analysis of retractions in PubMed

November 30, 2010 | nsaunders

As so often happens these days, a brief post at FriendFeed got me thinking about data analysis. Entitled “So how many retractions are there every year, anyway?”, the post links to this article at Retraction Watch. It discusses ways to estimate the number of retractions and in particular, a recent ... [Read more...]

Findings increasingly novel, scientists say…

October 29, 2010 | nsaunders

…was the tongue-in-cheek title of an image that I posted to Twitpic this week. It shows the usage of the word “novel” in PubMed article titles over time. As someone correctly pointed out at FriendFeed, it needs to be corrected for total publications per year. It was inspired by a ...
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BioStar users (of the world, unite)

October 9, 2010 | nsaunders

Egon writes: Can someone please plot the BioStar users on a Google Map? Sounds like a challenge. Let’s go. 1. Harvesting user IP addresses BioStar user profiles (here’s mine) include a location field. It’s free text and optional, which means that location is missing or inaccurate for many ...
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Map of Upcoming Ruby Conferences

August 21, 2010 | C

One of the top searches on rubyflow is “conference”.  A recent post showed how to create a map with the location of the 2010 R User Conference.  So why not expand on the subject and create a map with numerous conference locations thr...
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Iris Data Set Visualization Web App in < 100 LOC

August 7, 2010 | C

The iris data set pops up pretty regularly in statistical literature.  It consists of 50 records from three species of Iris flowers (Iris setosa, Iris virginica and Iris versicolor).   I came across it recently while reading Introduction to Data Mining.   It comes up in several places in the book to demonstrate ...
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Thoroughly Unusual Itches

July 23, 2010 | C

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...
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Why R doesn’t suck

June 19, 2010 | Paul Butler

I first encountered the R programming language a few years ago when I needed to make some plots. Although I’ve used it occasionally since, I always considered it a sort of “Perl for statisticians” — a useful swiss-army knife with … Continue reading → [Read more...]

Installing Ruby on Linux as a User other than root

June 17, 2010 | C

Ruby is best known as the language behind the rails web application framework. However, it is a very flexible general purpose language that can be used for tasks of direct interest to R Developers (parsing files, interacting with databases, processing...
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Calling Ruby, Perl or Python from R

June 16, 2010 | C

If you want to interact with other programming languages from R, there are various packages and bindings available. These packages provide a pretty high degree of integration between the langages and allow you to pass objects back and forth seemlessl...
[Read more...]

3 lines of R code to Process a Web Service

June 9, 2010 | C

Ruby is well known for its terse syntax and ability to process web services. I prefer JSON (Javascript Object Notation) to XML whenever possible. For example, a script to retrieve a list of World Bank Data takes all of three lines of code (after in...
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Experiments with igraph

April 21, 2010 | nsaunders

Networks – social and biological – are all the rage, just now. Indeed, a recent entry at Duncan’s QOTD described the “hairball” network representation as the dominant cultural icon in molecular biology. I’ve not had occasion to explore networks “professionally”, but have always been fascinated by both networks and the ...
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