The following statements are available in the VARIOGRAM procedure:
                         PROC VARIOGRAM
                          options   ; 
                         BY
                          variables   ; 
                         COMPUTE
                          computation-options   ; 
                         COORDINATES
                          coordinate-variables   ; 
                         DIRECTIONS
                          directions-list   ; 
                         ID
                          variable   ; 
                         MODEL
                          model-options   ; 
                         PARMS
                          parameters-list </ parameters-options>   ; 
                         NLOPTIONS
                          <options>   ; 
                         STORE
                          store-options   ; 
                         VAR
                          analysis-variables-list   ; 
            
The COMPUTE and COORDINATES statements are required. The MODEL and PARMS statements are hierarchical. If you specify a PARMS statement, it must follow a MODEL statement.