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Easier online choropleth maps with Landline

Despite the frequent use of choropleth maps online, they're still kind of tricky to produce for beginners. Landline, an open source JavaScript library from ProPublica, aims to make it a…

Linked Small Multiples

Small multiples are great, and the right interactions can make them even better. A primer and a how-to.

How to Make an Animated, Self-Sorting List

You have a list of things that can be ordered by different values. Let them sort themselves out.

How to Make an Interactive Treemap

Treemaps are useful to view and explore hierarchical data. Interaction can help you look at the data in greater detail.

How to Animate Transitions Between Multiple Charts

Animated transitioning between chart types can add depth to your data display. Find out how to achieve this effect using JavaScript and D3.js.

How to Make an Interactive Choropleth Map

When presented with a static graphic, it can be useful to see specific values after you see overall patterns. This tutorial shows you how to add simple interactions to a choropleth map so you can get specifics for regions.

xkcd-style charts in R, JavaScript, and Python

The ports and packages to make your charts look like they came from the web comic xkcd are coming out in rapid fashion. Dan Foreman-Mackey stylized charts in JavaScript using…

Make cool images with emergent algorithm

I'm not sure what I'd do with Ablaze.js, a JavaScript library by Patrick Gunderson, but the results are sexy. Play around with the app here. [via @jeffclark]…

How to Make an Interactive Network Visualization

Interactive network visualizations make it easy to rearrange, filter, and explore your connected data. Learn how to make one using D3 and JavaScript.

Interactive Time Series Chart with Filters

Time series charts can easily turn to spaghetti when you have multiple categories. By highlighting the ones of interest, you can direct focus and allow comparisons.

Live Coding Implemented

Remember Bret Victor's live coding talk from last month? He presented an example where he would edit code on one side, and the corresponding visual would automatically update on the…

Wind motion patterns animated

Nicolas Garcia Belmonte, author of the JavaScript InfoVis Toolkit, mapped 72 hours of weather data from 1,200 stations across the country. Gathering the data from the National Weather Service was…

Build Interactive Area Charts with Filters

When you have several time series over many categories, it can be useful to show them separately rather than put it all in one graph. This is one way to do it interactively with categorical filters.

Data-Driven Documents for visualization in the browser

As we know, browsers keep getting better, and it grows easier every day to visualize data native in the browser, when you used to have to use Flash. In the…