The SURVEYREG Procedure
- Overview
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Getting Started
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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
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Details
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Examples
- References
| Computational Resources |
Due to the complex nature of survey data analysis, the SURVEYREG procedure requires more memory than an analysis of the same regression model by the GLM procedure. For details about the amount of memory related to the modeling, see the section Computational Resources in Chapter 41, The GLM Procedure.
The memory needed by the SURVEYREG procedure to handle the survey design is described as follows.
Let
be the total number of strata 
be the total number of clusters in your sample across all strata, if you specify a CLUSTER statement 
be the total number of parameters in the model
The memory needed (in bytes) is
 |
For a cluster sample, the additional memory needed (in bytes) is
 |
The SURVEYREG procedure also uses other small amounts of additional memory. However, when you have a large number of clusters or strata, or a large number of parameters in your model, the memory described previously dominates the total memory required by the procedure.