Basic Analysis and Graphing - SAS

418 Creating Maps Chapter 16
Background Maps
x=-long*(180/constant('pi'));
run;
You can now import the converted file and save it as Belize-XY.jmp.
The next step is to import the matching feature data set (in this case: MAPS.BELIZE2). After importing the
feature data set, move the ID column to the first position in the data table. Then assign the Map Role
column property to the columns that you use for place names in the Shape role of Graph Builder. To do
this, right-click the top of the column and choose Column Properties > Map Role. Then choose Shape
Name Definition from the drop-down box in the property definition. For MAPS.BELIZE2, use the
IDNAME column. Save the feature data table as Belize-Name.jmp.
To convert SAS maps, download the SAS to JMP Map Converter add-in from the JMP File Exchange. For
each map, the add-in reads the data from the two SAS map tables, rearranges and formats the data and then
places it into the two JMP map tables.
Background Maps
Adding map images and boundaries to graphs provides visual context to geospatial data. Affixing a
background map generates an appealing map, providing your data a geographic context and giving you a
whole new way to view your data. For example, you can add a map to a graph that displays an image of the
U.S. Another option is displaying the boundaries for each state (when data includes the latitudes and
longitudes for the U.S.). There are different types of background maps. Some maps are built into JMP and
are delivered as part of the JMP install. Other maps are retrieved from an Internet source, and still other
maps are user-defined.
The data should have latitudinal and longitudinal coordinates. Otherwise, the map has no meaning in the
context of the data. The x and y axes also have range requirements based on the type of map. These
requirements are described in the following sections. Simply plot longitude and latitude on the X and Y
axes, and then right-click within the graph and choose Background Map from the pop-up menu.
The Background Map window shows two columns of choices: Images and Boundaries. On the left of the
window you can choose from two built-in map images, or you can connect to a Web Map Service to retrieve
a background image. On the right side of the window, choose to show political boundaries for a number of
regions.