The COUNTREG Procedure
- Overview
- Getting Started
-
Syntax
-
DetailsSpecification of RegressorsMissing ValuesPoisson RegressionConway-Maxwell-Poisson RegressionNegative Binomial RegressionZero-Inflated Count Regression OverviewZero-Inflated Poisson RegressionZero-Inflated Conway-Maxwell-Poisson RegressionZero-Inflated Negative Binomial RegressionVariable SelectionPanel Data AnalysisComputational ResourcesNonlinear Optimization OptionsCovariance Matrix TypesDisplayed OutputOUTPUT OUT= Data SetOUTEST= Data SetODS Table NamesODS Graphics
-
Examples
- References
FREQ variable ;
The FREQ statement specifies a variable whose values represent the frequency of occurrence of each observation. PROC COUNTREG
treats each observation as if it appears 
times, where is the value of the FREQ variable for the observation. If the frequency value is not an integer, it is truncated to an integer;
if it is less than 1 or missing, the observation is not used in the model fitting. When the FREQ statement is not specified,
each observation is assigned a frequency of 1. If you specify more than one FREQ statement, then the first statement is used.