Ranking and Clustering

In a recent JunkCharts post (http://junkcharts.typepad.com/junk_charts/2011/05/rank-confusion.html) the author shows a good example of transforming data (in this case ranking/clustering data) into a more visual representation.  I definitely like the revised representation proposed by the author.

Additionally, it points out that ranking and clustering has challenges for showing ‘superiority’ as the ordinal scales may not provide sufficient information to make such conclusion.  See also this post for more discussions and an external link (http://junkcharts.typepad.com/numbersruleyourworld/2011/02/why-statisticians-ignore-rankings.html)

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