SAS/ETS(R) 9.2 User's Guide

specify the input data set

COUNTREG

DATA=

write parameter estimates to an output data set

COUNTREG

OUTEST=

write estimates of and to an output data set

OUTPUT

OUT=

specify BY-group processing

BY

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

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 5, Nonlinear Optimization Methods,

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=

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

OUTPUT

XBETA=

output estimates of ZGamma

OUTPUT

ZGAMMA=

output probability of response variable taking a zero value as a result of the zero-generating process

OUTPUT

PROBZERO=