Category Archives: Information Visualization

Parallel Coordinates Plot in Flex

By Michael | October 13, 2008

I spent the past few weekends writing a parallel coordinates plot.   For the uninitiated, parallel coordinates plots are used to show the relationships between items in a multidimensional dataset.  Three dimensional data points can be difficult enough to visualize on a two dimensional screen, and when you throw even more dimensions into the problem, things [...]

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HeatMapping the Spread of WalMart

By Michael | August 11, 2008

I recently came across a post on FlowingData with a visualization showing the growth of the WalMart chain over the years.  It’s very well done, but all those icons really clutter up the map.  The fact that they’re semi-transparent makes it possible to distinguish the dense areas from the sparse ones, but it’s difficult to [...]

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