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Red republic, red eyes

The eye cannot sort colors into a ranking. It only works with hues. That is why most colored graphs are hard to read. Hue needs a continuous measure (€, cm, km/h, etc.). Normally. An exception: in the German newspaper “Welt am Sonntag”.

Red republic
Source: Welt am Sonntag, 2008-03-16, p. 6.

The strength of the new left-wing party in Germany is a discrete measure (Governing party, second most party, etc.). Still the idea of hues works. Great. Apart from that: beautiful Bavaria. The states to the right (“Sonntagsfrage Landtagswahl”, opinion poll for state elections) should be sorted. According to the share of the left-wing party.