Drawbacks: For newcomers unused to coding visualizations, it takes time to get familiar with coding and library syntax.
Skill level: Expert.
Learn more: There are a number of examples you can look at, including Red Sox-Yankees Winning Percentages Through the Years, U.S. Cities by Population and others.
What it does: Unlike Google Fusion Tables, which is a full-fledged, self-contained application for uploading and storing data, and generating charts and maps, Chart Tools is designed to visualize data residing elsewhere, such as your own website or within Google Docs.
For the simpler static graphics, there's a wizard to help you create a chart from some sample formats; it goes as far as helping you input data row by row, although for any decent-size data set -- say, more than half a dozen or so entries -- it makes more sense to format it in a text file.
The visualization API includes various types of charts, maps, tables and other options.
What's cool: The static image chart is reasonably easy to use and features a Live Chart Playground, which allows you to tweak code and see your results in real time.
Skill level: Advanced beginner to expert.
Runs on: Any Web browser.
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