Software

Mike Bostock, creator of D3, believes in using examples to show what can be done with his code.

NlpTools is a PHP library for natural language processing.

Polychart just launched its open beta. “Lightweight visual analytics and business intelligence on the web.” Mainly, a drag-and-drop interface for quick charts.

A Guide to Speeding Up R Code for Busy People. R can be slow at times. Here are some tips on getting it to go faster.

Kevin Jamieson, an electrical and computer engineering graduate student at the University of…

Mike Bostock continues to beef up the documentation and tutorials for D3. This one for selections.

As an alternative to dot density maps, Binify by Kevin Schaul allows you…

Extract CSV data from PDF files with Tabula. A collaborative project from Mozilla Open News.

The healthvis R package tries to make creation of interactive graphics easier by rendering in D3.

The example repository for Mining the Social Web if you’re interested in getting started. The Twitter examples rely on a soon to be defunct API, because the book was written in 2011, but the rest is still valid.

Imperative vs Declarative programming. In the former you tell the computer how to do something, whereas with the latter, you tell the computer what to do. Worthwhile knowing with the recent launch of Vega. [via]

Visualization online can be a challenge if you don’t know how to program.…

When you go to one of the major sites to look up the…

The Natural Language Toolkit is a Python library that is commonly used to extract data from text. There’s a free, online-accessible book to learn how to use it.

By Samuel Huron and Romain Vuillemot, Visual Sedimentation is “a JavaScript library for visualizing streaming data, inspired by the process of physical sedimentation.” Be sure to check out the examples.

It’s not especially straightforward to know or find out what’s going on with…

Hadley Wickham has been working on a book that covers advanced programming in R, namely programming concepts and workflow and package development. It goes to print later this year, but the contents are freely available for consumption now.

Nifty trick that uses Mapquest API as source

Automatically make a color palette based on color space

Analyze web traffic [via]