GMAP Procedure

Displaying Map Areas and Response Data

Whether the GMAP procedure draws a map area and whether it displays patterns for response values depends on the contents of the response data set and on the ALL and MISSING options. The following table describes the conditions under which the procedure does or does not display map areas and response data.
Displaying Map Areas and Response Data
Characteristic of the response data set
Additional variables
Result
Includes the map area.
The map area has a response value.
The procedure draws the map area and displays the response data.
Includes the map area.
The response value for the map area is a missing value.
The procedure draws the map area but leaves it empty.
Includes the map area.
The response value for the map area is a missing value and the MISSING option is used in the map statement.
The procedure draws the map area and displays a response level for the missing value.
Includes the map area.
The map area has a response value and the MAP= option and the DATA= statement specify the same map data set.
The procedure draws the map area and displays boundary outlines but does not display the value of the response variable or variables.
Does not include the map area.
The ALL option is used in the PROC GMAP statement.
The procedure draws the map area but leaves it empty.
Does not include the map area.
The ALL option is not used.
The procedure does not draw the map area.