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The COUNTREG Procedure
Overview
Getting Started
Syntax
Functional Summary
PROC COUNTREG Statement
BOUNDS Statement
BY Statement
CLASS Statement
FREQ Statement
INIT Statement
MODEL Statement
NLOPTIONS Statement
OUTPUT Statement
RESTRICT Statement
WEIGHT Statement
ZEROMODEL Statement
Details
Specification of Regressors
Missing Values
Poisson Regression
Negative Binomial Regression
Zero-Inflated Count Regression Overview
Zero-Inflated Poisson Regression
Zero-Inflated Negative Binomial Regression
Computational Resources
Nonlinear Optimization Options
Covariance Matrix Types
Displayed Output
OUTPUT OUT= Data Set
OUTEST= Data Set
ODS Table Names
Examples
Basic Models
ZIP and ZINB Models for Data Exhibiting Extra Zeros
References
Details: COUNTREG Procedure
Specification of Regressors
Missing Values
Poisson Regression
Negative Binomial Regression
Zero-Inflated Count Regression Overview
Zero-Inflated Poisson Regression
Zero-Inflated Negative Binomial Regression
Computational Resources
Nonlinear Optimization Options
Covariance Matrix Types
Displayed Output
OUTPUT OUT= Data Set
OUTEST= Data Set
ODS Table Names
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