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Andrew Gelman

Take your graph of female/male life expectancy ratio and rotate it 90 degrees. That way you can spell out the country names and it's much more readable.

Actually, I'd also change the scale to difference in years rather than life expectancy ratio; the numbers are all close enough that there's no real need to divide, and years are clearer than ratios.

Robert

Population pyramids are used to show sex-specific age distributions, not to show country-specific life expectancies.

The bottom chart appear to be ordered by male life expectancy. If the point is that female life expectancy is higher, you might want to re-order by the gap. Alternatively, you could do a Tukey mean-difference plot. Here's one; here's another.

Aleks

This nice posting reminds me of a slightly different type of comparisons in the statgraphics blog.

Kaiser

Great points Andrew. I like them both.

Robert, the Tukey mean-difference plot is conceptually similar to my plot except that it introduces a ranking on the x-axis. This does bring up another improvement to the plot which is that it'd be better to have sorted the countries in terms of increasing differences.

Finally, Aleks pointer to statgraphics currently has a dizzingly bad map from Forbes magazine. Fun to look at though

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