GMAP Procedure

ID Statement

Identifies the variable or variables in the input data set(s) that define map areas.
Requirement: At least one id-variable is required.


ID id-variable(s);

Required Argument

identifies one or more variables in the map and response data sets that define a map area. This argument is used only when map and response data sets are specified.
Every variable that is listed in the ID statement must appear in both the map and response data sets. The variable identified by the id-variable(s) argument can be of type numeric or character and should have the same name, type, and length in both the response and map data sets.
Note: If the id-variables in the response data set and map data set do not have the same length, then your map areas might not be drawn correctly.