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**Figure 1.**   A scatterplot of life expectancy by GDP per capita inspired by [Hans Rosling's research](http://www.gapminder.org/). Bubble size shows country population, color coded by continent. This is not a static plot! If you hover your mouse over the data in the image above you can see the data points. If you drag your mouse, you'll zoom into the plot. Double click to zoom back out. If you click through, you can save, edit, and fork a copy. This plot was included in Authorea using the following snippet of code: `src="https://plot.ly/~bchartoff/707/830/475/" frameBorder="0"</span>&nbsp;<span class='diff-add'>src="https://plot.ly/~bchartoff/707/830/475/"` `frameBorder="0"</span>&nbsp; width="830" <span class='diff-rem'>height="500" seamless="seamless"</span>&nbsp;<span class='diff-add'>height="500"` `seamless="seamless"</span>&nbsp; scrolling="no">`