Highlighting the intervals allows you to show the minute differences more easily, whereas a typical line chart is good at showing drastic upward and downward movement, it is not as well suited to ...

The scale on the vertical axis prevents the type of trickery shown in Figure 3. Figure 5 shows a line graph where the tick marks are not spaced evenly and do not appear to be an easily ...

The most useful selection is a bar chart, because it allows you to format the second series as a line. Superimposing two types of charts makes identifying the two data scales easier. How to Format ...