11.2. Line charts

If you connect the points in a scatter plot moving from left to right, you have a line plot. The dataset Orange that come with the base installation contains age and circumference data for five orange trees. Consider the growth of the first orange tree, depicted in figure 11.17. The plot on the left is a scatter plot, and the plot on the right is a line chart. As you can see, line charts are particularly good vehicles for conveying change.

Figure 11.17. Comparison of a scatter plot and a line plot