Dot Density Map Type

The Dot Density map type plots a dot on the map for every occurrence of a specified item. The areas of the map having more data points will have a larger number of dots displayed. This can be useful for seeing trends based upon geographical characteristics such as proximity to a major city or coastal areas. Figure 14-7 shows an example of the dot density map. The legend in the top right corner tells you the quantity that each dot represents.

Figure 14-7. Dot density map type.

The only problem with the dot density report is that the dots are pretty small. The map in the above figure has the option to use the larger sized dots and they are still difficult to see.