Can SAS deal with the singleton/lonely PSU in Survey procedures

[EPM22]

Is there an option in SAS survey procedures to handle singleton PSUs? The default drops them. Are their options similar to those in stata? I have seen other posts ask this question but have not see an answer.  Thanks! 

[sbxkoenk]

Hello ,

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@EPM22 wrote:

Is there an option in SAS survey procedures to handle singleton PSUs? The default drops them. 

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Drops them ???? - all of the data are used for point estimation, but the singleton stratum does not contribute to the variance estimation. With NOCOLLAPSE it does not add a degree-of-freedom either. See Denominator Degrees of Freedom.

What SUDAAN or STATA behavior are you looking for?

Usage Note 23997: Sampling designs supported by the survey procedures

https://support.sas.com/kb/23/997.html

Ciao, Koen

[EPM22]

Thank you! I miss read the warning as dropping rather not contributing. Appreciate your response! Best!