background preloader

Manipulating data like a boss with d3

Manipulating data like a boss with d3

Related:  D3.jsD3

Creating Animations and Transitions With D3 For the ambitious, this is a great intro to creating your own animations and transitions in d3.js. If you get in over your head, drop by the Visually Marketplace to hire one of our talented developers. In interactive visualisation, there is the word reactive. Well, maybe not literally, but close enough. The fact is that reactivity, or the propension of a visualisation to respond to user actions, can really help engage the user in a visualisation, and help them understand its results. Both of which are usually good things.

Data Structures D3.js Accepts The Goal In this section, you will understand how to structure data for better use of D3.js. We will cover where we have been, how D3.js thinks of selections, the basics of JavaScript objects and how to best structure our data. What we have seen thus far Mike Bostock December 27, 2014Mapping Every Path to the N.F.L. Playoffs December 20, 2014How Each Team Can Make the N.F.L. Playoffs November 5, 2014The Most Detailed Maps You’ll See From the Midterm Elections November 3, 2014How To Scroll The world’s top 50 billionaires: A demographic breakdown. Top 50 Billionaire Breakdown If you asked anyone to picture the wealthiest person in the world at any given time, you could bet on some common denominators: probably a man; probably somehow attached to the words “multinational” or “conglomerate”; probably on a yacht off a private island. With Slate’s Top 50 Billionaire Breakdown, we attempt to visualize the richest of the rich by paring them into demographic categories: age, location, industry, source of wealth, education, and religious affiliation. Some of the sortings are heartening: There are more self-made men than born-rich kids in the top 50, and the self-made billionaires’ total wealth is bigger. Some are less so: The entire African continent has the same number of billionaires as Canada (one each), and there isn’t a single woman in the top 50 who’s self-made. (We’re rooting for you, Wu Yajun!)

Authoring Data-Driven Documents Over the last few months I’ve been learning D3 (Data-Driven Documents), which is a really powerful data visualization library built for javascript. The InfoVis paper gets to the gritty details of how it supports data transformations, immediate evaluation of attributes, and a native SVG representation. These features can be more or less helpful depending on what kind of visualization you’re working on. D3 for Mere Mortals By Luke Francl (, August 2011 d3.js is a data visualization library by Mike Bostock, who is also the primary creator of Protovis, which D3 is designed to replace. D3 has a steep learning curve, especially if (like me) you are not used to the pixel-precision of graphics programming. To build a visualization with D3, you need to understand JavaScript objects, functions, and the method-chaining paradigm of jQuery; the basics of SVG and CSS; D3's API; and the principles for designing effective infographics. The pay off is that you can create some amazing visualizations with D3 (just look at the examples!). I know very little about D3, but the best way to learn something is to teach here is a very simple introduction to D3 from the beginning.

CSV To JSON Converter Convert CSV to JSON Use the tool on this page to convert CSV data to JSON From CSV Simple Map D3 All you need is a dataset. Installing with Bower is easy: bower install simple-map-d3 Include dependencies (Topojson if you are using that format). Include library: How Selections Work Any sufficiently advanced technology is indistinguishable from magic. –Arthur C. Clarke In the past I have presented simplified descriptions of D3’s selections, providing only enough detail to get started. This article takes a more comprehensive approach; rather than saying how to use selections, I will explain how selections are implemented.

D3 And JavaScript: Working With JSON This example covers the basics of how to use JSON when working with D3 and JavaScript. Why Working With JSON Is Important: JSON is a human readable data interchange format. JSON makes moving data around your JavaScript Application/Data Visualization easier. This helps you get the benefit of organizing your data as well as the benefits of interoperability and openness. The Concept Behind JSON