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SAS/Ets 9.22 User's Guide 54. Provides detailed reference material for using SAS/ETS software and guides you through the analysis and forecasting of features such as univariate and multivariate time series, cross-sectional time series, seasonal adjustments, multiequational nonlinear models, discrete choice models, limited dependent variable models, portfolio analysis, and generation of financial reports, with introductory and advanced examples for each procedure. You can also find complete information about two easy-to-use point-and-click applications: the Time Series Forecasting System, for automatic and interactive time series modeling and forecasting, and the Investment Analysis System, for time-value of money analysis of a variety of investments | 522 F Chapter 10 The COUNTREG Procedure PROC COUNTREG options BOUNDS boundl bound2. BY variables CLASS variables FREQ variable INIT initvaluel initvalue2. MODEL dependent variable regressors options NLOPTIONS options OUTPUT options RESTRICT restrictionl restriction2. WEIGHT variable ZEROMODEL dependent variable zero-inflated regressors options There can only be one MODEL statement. The ZEROMODEL statement if used must appear after the MODEL statement and the CLASS statement must precede the MODEL statement. If a FREQ or WEIGHT statement is specified more than once the variable specified in the first instance is used. Functional Summary Table 10.1 summarizes statements and options used with the COUNTREG procedure. Table 10.1 COUNTREG Functional Summary Description Statement Option Data Set Options Specifies the input data set COUNTREG Writes parameter estimates to an output data set COUNTREG Writes estimates of xi 0 and zi y to an output data OUTPUT set DATA OUTEST OUT Declaring the Role of Variables Specifies BY-group processing Specifies classification variables Specifies a frequency variable Specifies a weight variable BY CLASS FREQ WEIGHT Printing Control Options Prints the correlation matrix of the estimates MODEL CORRB Prints the covariance matrix of the estimates MODEL COVB Prints a summary iteration listing MODEL ITPRINT Suppresses the normal printed output COUNTREG NOPRINT Requests all printing options MODEL PRINTALL Options to Control the Optimization Process Specifies maximum number of iterations allowed MODEL MAXITER Selects the iterative minimization method to use COUNTREG METHOD PROC COUNTREG Statement F 523 Description Sets boundary restrictions on parameters Sets initial values for parameters Sets linear restrictions on parameters Specifies the optimization options Statement Option BOUNDS INIT RESTRICT NLOPTIONS See Chapter 6 Nonlinear Optimization Methods Model Estimation Options Specifies the type of model MODEL DIST Specifies the type of model .
