FRONTIER Procedure

Table 1 summarizes the statements and options available in the FRONTIER procedure.

Table 1: Functional Summary

Description	Statement	Option
Data Table Options
Specifies the input data table	PROC FRONTIER	DATA=
Writes estimates to an output data table	OUTPUT	OUT=
Declaring the Role of Variables
Specifies BY-group processing	BY
Specifies the classification variables	CLASS
Specifies an optional frequency variable	FREQ
Specifies an optional weight variable	WEIGHT	NONORMALIZE
Printing Control Options
Prints the correlation matrix of the estimates	PROC FRONTIER	CORRB
Prints the covariance matrix of the estimates	PROC FRONTIER	COVB
Suppresses the normal printed output	PROC FRONTIER	NOPRINT
Requests all printing options	PROC FRONTIER	PRINTALL
Prints the names used internally for the parameters	PROC FRONTIER	PRINTINTERNALNAMES
Options to Control the Optimization Process
Selects the iterative minimization method to use	PROC FRONTIER	METHOD=
Specifies maximum number of iterations allowed	PROC FRONTIER	MAXITER=
Specifies maximum number of function calls	PROC FRONTIER	MAXFUNC=
Specifies the upper limit of CPU time in seconds	PROC FRONTIER	MAXTIME=
Sets boundary restrictions on parameters	BOUNDS
Sets initial values for parameters	INIT
Sets linear restrictions on parameters	RESTRICT
Model Estimation Options
Specifies the type of covariance matrix	PROC FRONTIER	COVEST=
Suppresses the intercept parameter	MODEL	NOINT
Specifies a stochastic frontier production model	MODEL	PRODUCTION
Specifies a stochastic frontier cost model	MODEL	COST
Specifies the distribution for the inefficiency term	MODEL	TYPE=
Output Control Options
Specifies the ODS tables to display	DISPLAY
Specifies the ODS tables to save as output tables	DISPLAYOUT
Outputs SAS variables to the output data table	OUTPUT	COPYVAR=
Outputs expected value of response variable	OUTPUT	PRED=
Outputs the residuals	OUTPUT	RESID=
Outputs the technical efficiency measures	OUTPUT	TE1= and/or TE2=
Outputs estimates of XBeta	OUTPUT	XBETA=