Code help: Wizards, libraries, APIs
Sometimes nothing can substitute for coding your own visualization -- especially if the look and feel you're after can't be achieved without an existing desktop or Web app. But that doesn't mean you need to start from scratch, thanks to a wide range of available libraries and APIs.
Choosel (under development)
What it does: This open-source Web-based framework is designed for charts, clouds, graphs, timelines and maps. Right now, it is geared more for developers who create applications than it is for end users who need to save and/or embed their work; but there's an interactive online demo that lets you quickly upload some data to visualize.
What's cool: As with Tableau Public, you can have more than one visualization on a page and connect them so that, for example, mousing over items on a chart will highlight corresponding items on a map.
Drawbacks: This is not yet an application that end users can use to store and share their work. And I found the online demo to be finicky about uploading data -- even after I corrected field formats for dates (dd/mm/yyyy) and location (latitude/longitude) as documented, my data wouldn't load until I had another text field added (rather than just having numerical fields). It was also unclear how to customize labels. This project shows promise if it's further developed and documented.
Skill level: Expert
Runs on: Chrome, Safari and Firefox.
What's cool: For those who are comfortable coding, Exhibit offers a number of views -- maps, charts, timeplots, calendars and more -- as well as customized lenses (ways to format an individual record) and facets (properties that can be searched or sorted). You're much more likely to get the exact presentation you want with Exhibit than, say, Many Eyes. And your data stays local unless and until you decide to publish.
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