Basic Analysis and Graphing - SAS

Chapter 16 Creating Maps 431
Examples of Creating Maps
You can clearly see the drop in population as a result of Hurricane Katrina. The population of the Orleans
parish went from 437,186 in July 2005 to 158,353 in January 2006.
Point to Specific Map Files Directly from Your Data
As an example of pointing to specific map files directly from your data, say that you already have your
custom map files and they are named appropriately. Your map files are US-MSA-Name.jmp and
US-MSA-XY.jmp. They are saved in the Sample Data folder.
The PopulationByMSA.jmp data table contains population data from the years 2000 and 2010 for the
metropolitan statistical areas (MSAs) of the United States. Set up the Map Role column property in the data
table, as follows:
1. Open the PopulationByMSA.jmp sample data table.
2. Right-click on the Metropolitan Statistical Area column and select Column Info.
3. Select Column Properties > Map Role.
4. Select Shape Name Use.
5. Next to the Map name data table, enter the following path:
– On Windows: C:\Program Files\SAS\JMP\\Samples\Data\US-MSA-Name.jmp
– On Mac: /Library/Application Support/JMP//Samples/Data/
US-MSA-Name.jmp
This tells JMP where the data tables containing the map information reside.
6. Next to the Shape definition column, type MSA_Name.
MSA_Name is the specific column within the US-MSA-Name.jmp data table that contains the unique
names for each metropolitan statistical area. Notice that the MSA_Name column has the Shape Name
Definition Map Role property assigned, as part of correctly defining the map files.
Note: Remember, the Shape ID column in the -Name data table maps to the Shape ID column in the -XY
data table. This means that indicating where the -Name data table resides links it to the -XY data table, so
that JMP has everything that it needs to create the map.