PROC COUNTREG: Functional Summary :: SAS/ETS(R) 9.2 User's Guide

The COUNTREG Procedure

The statements and options used with the COUNTREG procedure are summarized in the following table.

Table 10.1 COUNTREG Functional Summary
Description	Statement	Option
Data Set Options
specify the input data set	COUNTREG	DATA=
write parameter estimates to an output data set	COUNTREG	OUTEST=
write estimates of $\text{[math]}$ and $\text{[math]}$ to an output data set	OUTPUT	OUT=
Declaring the Role of Variables
specify BY-group processing	BY
Printing Control Options
print the correlation matrix of the estimates	MODEL	CORRB
print the covariance matrix of the estimates	MODEL	COVB
print a summary iteration listing	MODEL	ITPRINT
suppress the normal printed output	COUNTREG	NOPRINT
request all printing options	MODEL	PRINTALL
Options to Control the Optimization Process
specify maximum number of iterations allowed	MODEL	MAXITER=
select the iterative minimization method to use	COUNTREG	METHOD=
set boundary restrictions on parameters	BOUNDS
set initial values for parameters	INIT
set linear restrictions on parameters	RESTRICT
specify other optimization options	COUNTREG	see Chapter 6, Nonlinear Optimization Methods,
Model Estimation Options
specify the type of model	MODEL	DIST=
specify the type of model	COUNTREG	DIST=
specify the type of covariance matrix	MODEL	COVEST=
suppress the intercept parameter	MODEL	NOINT
specify the offset variable	MODEL	OFFSET=
specify the zero-inflated offset variable	ZEROMODEL	OFFSET=
specify the zero-inflated link function	ZEROMODEL	LINK=
Output Control Options
include covariances in the OUTEST= data set	COUNTREG	COVOUT
output probability of response variable taking the current value	OUTPUT	PROB=
output expected value of response variable	OUTPUT	PRED=
output estimates of XBeta $\text{[math]}$	OUTPUT	XBETA=
output estimates of ZGamma $\text{[math]}$	OUTPUT	ZGAMMA=
output probability of response variable taking a zero value as a result of the zero-generating process	OUTPUT	PROBZERO=

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