Draw a long, skinny rectangle on the graph and set the fill color to be 50 percent transparent if you just want to highlight one interval on the whole graph, rather than all of the intervals on ...

Showing the axis labels at certain intervals can be helpful if your axis text is large, you have limited space on the graph or the missing intervals can be easily deduced using the remaining labels.

The study involved taking 20 cyclists, assigning each of them to one of five different interval training routines, twice a week for three weeks. The graph above shows how much each cyclist ...

The scale on the left graph is inappropriate. The numbers go up higher than necessary on both axes. This means the points are squashed into a small part of the graph area and are difficult to read ...

The one that Jones pointed out comes from analysis of the tails of the graph above. The intervals training routines used in the 37 studies had all sorts of different parameters -- different ...