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CLASS Statement
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The QLIM Procedure

  • Overview
  • Getting Started Getting Started
    Introductory Example: Binary Probit and Logit Models
  • Syntax Procedure Syntax
    Functional Summary PROC QLIM Statement BOUNDS Statement BY Statement CLASS Statement ENDOGENOUS Statement FREQ Statement HETERO Statement INIT Statement MODEL Statement NLOPTIONS Statement OUTPUT Statement RESTRICT Statement TEST Statement WEIGHT Statement
  • Details Procedure Details
    Ordinal Discrete Choice Modeling Limited Dependent Variable Models Stochastic Frontier Production and Cost Models Heteroscedasticity and Box-Cox Transformation Bivariate Limited Dependent Variable Modeling Selection Models Multivariate Limited Dependent Models Tests on Parameters Output to SAS Data Set OUTEST= Data Set Naming ODS Table Names
  • Examples Procedure Examples
    Ordered Data Modeling Tobit Analysis Bivariate Probit Analysis Sample Selection Model Sample Selection Model with Truncation and Censoring Types of Tobit Models Stochastic Frontier Models
  • References
 
CLASS Statement
CLASS variables ;

The CLASS statement names the classification variables to be used in the analysis. Classification variables can be either character or numeric.

Class levels are determined from the formatted values of the CLASS variables. Thus, you can use formats to group values into levels. See the discussion of the FORMAT procedure in SAS Language Reference: Dictionary for details.

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