Click here to see the v9.2 SAS code.
Click here to see the v9.2 example.

Click here to see the v9.1.3 SAS code.
Click here to see the v9.1.3 example.

---------------------------------------------------------------

With some of the more detailed maps, it is often desireable to reduce
the complexity (density) of the borders, to make the map less cluttered,
and make the borders look more 'crisp' (rather than a blob of closely
packed dots).

In v9.1.3, you generally had to run "proc greduce" to add a density variable
to the map dataset, and then subset the data (or use a where clause) to 
plot only the density you wanted.

In v9.2, many of the large maps have been pre-greduced and already 
contain a density variable, and a new density= option has been added to
proc gmap to make it easy to specify what density to make the borders
(without subsetting the data, or using a where clause).

Back to Samples Index