Visualizing our first data

So far we've seen the basics of how D3 works. In this last section of this first chapter, we'll create a simple visualization of some real data. We're going to visualize the popularity of baby names in the USA. The final result will look this:

As you can see in this figure, we create pink bars for the girl names, blue bars for the boy names, and add an axis at the top and the bottom, which shows the number of times that name was chosen. The first thing, though, is take a look at the data.