Charting lines, circles, and dots
There are several types of charts that do not contain bars. You have probably heard of some of these, but perhaps not all of them. We will briefly go over common charts that contain lines, circles, and dots and how they are used!
Line charts
The line chart is another iconic chart and is used pretty heavily in certain fields. A line chart tracks changes in a quantitative variable over time. Time is always on the xaxis and your number variable is on the yaxis. These are usually used to look at general trends – is this variable increasing over time, decreasing over time, or staying roughly the same? Alternatively, it can be used to see whether a specific point is breaking a historical trend. Let’s see what a line chart looks like in Figure 13.7:
Figure 13.7 – Line chart
Effectively, a single point is made for your quantitative variable for every value on the xaxis, which can be any unit of time...
