Macrofocus High-D API - Web Index 2013 Applet

Macrofocus High-D API - Web Index 2013 Applet

This is an interactive visualization of the Web Index 2013, created using the High-D API developed by Macrofocus. It is made of multiple linked views showing all the aspects of the data. A geographical thematic map shows the score of each country mapped into colors ranging from dark (high) to light (low) blue. Countries can be selected individually, or by region using rubberbanding. Zooming is provided to select small countries. A histogram of the various scores is also provided with the same color coding as the geographical map. Alternatively, a similarity map computed by a multidimensional scaling algorithm (Sammon mapping) can be used to find countries with similar values. Similarity is defined by taking into account all the sub-indices. The lower part provide two hierarchical parallel coordinates plots. Connecting the actual values for one specific country on all the axes leads to a polycurve which form a visual representation of the characteristics of this country. Differences between countries can easily be spotted by comparing the polycurves connecting them. Range sliders are embedded within the parallel coordinates for filter out countries falling outside one or multiple ranges. To avoid overplotting, the parallel coordinates shows the density of the crossing using gray scale intensity. Axes within a given group can be reordered using drag and drop. All views are kept synchronized based on probing (mouse over, in yellow) , selection (mouse click, in red), and filtering (through the range sliders). This arrangement allows for focusing on elements of interest without loosing the big picture.

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Posted Feb 11, 2014
 
Views: 1952
 
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Tags high-d, multidimensional scaling, parallel coordinates, similarity map, thematic map, web index
Tools Macrofocus High-D API
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