In this chapter, we learned how to work with remote data sources. With this knowledge, we created a reusable function to retrieve data. We learned about the fillBetween method and then went on to discuss the different area charts and created examples of each.

We gained an understanding of what trend lines are and looked at how the results can change depending on the number of data points. Along the way, we took note of some of the interpretation issues that can arise based on how data is visualized. We concluded the chapter by discussing scatterplot charts and looked for correlations in our data with the chart we created.

In the next chapter, we will learn about bar charts and the best uses for them. We will also look at ways to expand the functionality of our charts with click and hover events.