Find the revolution

I have a challenge for you. The chart above displays the evolution of infant mortality rate in Portugal. The years in the x-axis are not labeled on purpose. In one of those years there was a left-wing revolution. Left-wingers say that a sharp decline in the infant death rate is one of the “conquests” of the revolution, while … Read more

Charting tips 003: Consider your audience

Scatterplots are not used by the NY Times because readers simply can’t make sense of them. Don’t oversimplify, but don’t assume that your audience can read a complex chart. Know your audience, and if possible test your charts with a small sample. Know what they expect, deliver that and perhaps a little more. When adding … Read more