Feeling hot, hot, hot

When you look at overall global temperatures over time, you see a rising line and new heat records set. Instead of just one line though, Tom Randall and Blacki Migliozzi for Bloomberg split up the time series by year and animated it.

Each year is overlaid on top of the other with a new time series in each frame. The dotted line rises too as new records are set, and as time passes, the older time series lines fade to the background.

You still get the rising effect as you would with a single time series over the past 135 years, but this view provides more focus to the increase, closer to present time.

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Life expectancy changes

The data goes back to 1960 and up to the most current estimates for 2009. Each line represents a country.

Think Like a Statistician – Without the Math

I call myself a statistician, because, well, I’m a statistics graduate student. However, the most important things I’ve learned are less formal, but have proven extremely useful when working/playing with data.

Graphical perception – learn the fundamentals first

Before you dive into the advanced stuff – like just about everything in your life – you have to learn the fundamentals before you know when you can break the rules.

Real Chart Rules to Follow

There are rules—usually for specific chart types meant to be read in a specific way—that you shouldn’t break. When they are, everyone loses. This is that small handful.