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Mike Anderson

How about clustering on slope, rather than level? I see two or three very different clusters in that case...


Here's a version that shows relative rankings in 1990, 2004, and the percent change:

Andrew Gelman

With only 2 time points, why not do a scatterplot?



Beat you to it.


Robert just always have a plotting program nearby. Usually for bivariate data, I'd prefer a scatter plot. But when I look at Robert's plot here, the data is correlated in such a way that nothing stands out. The between-country variations appear to be much larger than the within-country variations.

Robert A.

I've written some SAS/Graph code to produce a chart like the oririginal bar chart, if anyone would like to grab a copy and experiment with it ...


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Marketing analytics and data visualization expert. Author and Speaker. Currently at Columbia. See my full bio.

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