Today I started playing with CartoDB, an online data mapping service that reminds me in some ways of both Google Fusion Tables and TileMill.
To start, I grabbed a simple test data set — five months of geocoded major crimes in D.C. from January to May this year — to check out some features. One I like is allowing users to query their data in the browser-based interface and filter for specific types of records.
Here, for example, I narrowed the map to show just thefts:
Assaults with deadly weapons:
Thefts from vehicles:
I made these maps in less than five minutes, so I’m sure there are much more useful stories to tell with the tool. There are also many, many features I didn’t explore, like the ability to style the map using Carto, the CSS-like language, rather than the UI.
Anyway, give it a shot, and let me know what you build.
Why data visualization matters – O’Reilly Radar – “How are you going to make sense of all that information efficiently so you can make a good decision? Data visualization is an important answer to that question.” @Biff_Bruise
On New York Subway Map, a Wayward Broadway and Phantom Blocks – NYTimes.com – “The story unfurls along the West Side of the city’s hallowed underground cartography, more than 30 years after a zealous band of mapmakers first converged to reimagine New York’s sprawling jigsaw of subway lines. Their task was formidable: devise a modern guide to replace the old map, designed by Massimo Vignelli in 1972 with an artist’s touch but a less-than-faithful adherence to the city’s true geography. Success was claimed. Credit was fought over. Feelings were hurt. And now it can be told: Mistakes were made.” @EdwardTufte
Datavisualization.ch Selected Tools – “Datavisualization.ch Selected Tools is a collection of tools that we, the people behind Datavisualization.ch, work with on a daily basis and recommend warmly. This is not a list of everything out there, but instead a thoughtfully curated selection of our favourite tools that will make your life easier creating meaningful and beautiful data visualizations.” @eyeseast
New Infographics About the Federal Budget – “How much did the federal government collect in individual income taxes in fiscal year 2011? How much did it spend on health care programs or on defense? To provide ready answers to those questions, CBO has prepared three infographics examining the following components of the federal budget:” CBO
How journalists can create Guardian-style data visualisations with Miso – “The Guardian has released the first instalment of a toolkit to allow journalists working for any news organisation to create Guardian-style data visualisations using its code.” scoop.it
The Future of Data Visualization | Tableau Software – “Like everything else, the future of data visualization is hard to predict — but some recent developments can help us see where the field is going. There is also some structure in the field that points to what will change and what will likely stay the same. Here are three trends that are shaping data visualization today — and will continue to do so in the foreseeable future.” Tableau Software
Good morning. The Daily Viz, as you might be able to tell, has gotten a facelift. I’ve migrated the site from Tumblr to WordPress and installed NPR’s open-source Argo theme. The new platform offers more features, such as link roundups. These will become daily features in addition to posts of my own work:
Four Easy Visualization Mistakes to Avoid – “Creating a great visualization is not as hard as it seems. Provided you have some interesting data and an effective tool with which to visualize it, a little bit of thoughtful design will lead to a decent result. That said, there are some mistakes that are very easy to make, but can ruin even a thoughtfully-made piece. Here are four data visualization mistakes you should avoid.” Visua.ly
Visualizing Twitter – “In the framework of our researches, we are focusing on twitter visualization. This social platform indeed offers several opportunities for data visualization: social ties analysis, links between geography and themes/languages, real-time visualization of a particular topic (like a conference), or again to analyse a past topic and its ‘storyfication’.” Density Design
How Open Is Your Internet? – “The OpenNet Initiative has analysed government interference with the internet in 74 countries. The level of tampering in four categories is graded out of four in each country. See how each country is ranked below.” The Guardian
Following Nathan Yau’s excellent tutorial for creating heat maps with time series data (he used vehicle accidents by day for a year), I visualized 3,559 of my tweets back to March 2009.
These maps, created with a modified R script from the tutorial, show how often I sent tweets (both personal and RT), with darker shades representing more activity. It’s fun to go back to the dark days and recall what sparked flurries of tweets: