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X’X Matrix
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The SURVEYREG Procedure

  • Overview
  • Getting Started Getting Started
    Simple Random Sampling Stratified Sampling Output Data Sets
  • Syntax Procedure Syntax
    PROC SURVEYREG Statement BY Statement CLASS Statement CLUSTER Statement CONTRAST Statement DOMAIN Statement EFFECT Statement ESTIMATE Statement LSMEANS Statement LSMESTIMATE Statement MODEL Statement OUTPUT Statement REPWEIGHTS Statement SLICE Statement STORE Statement STRATA Statement TEST Statement WEIGHT Statement
  • Details Procedure Details
    Missing Values Survey Design Information Computational Details Variance Estimation Testing Domain Analysis Computational Resources Output Data Sets Displayed Output ODS Table Names ODS Graphics
  • Examples Procedure Examples
    Simple Random Sampling Cluster Sampling Regression Estimator for Simple Random Sample Stratified Sampling Regression Estimator for Stratified Sample Stratum Collapse Domain Analysis Compare Domain Statistics Variance Estimate Using the Jackknife Method
  • References
 

X’X Matrix

If you specify the XPX option in the MODEL statement, PROC SURVEYREG  displays the matrix. When there is a WEIGHT variable, the procedure displays the matrix. This option also displays the crossproducts vector or , where is the response vector (dependent variable).

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