st: self excluded average

["Ersado, Lire (IFPRI)" <L.ERSADO@CGIAR.ORG>]

Dear Statalist,

I would like to generate a new variable whose observations are self-excluded
averages of a variable of interest (as commonly done in obtaining
group/community averages to address issues such as endogeneity). Is there a
Stata routine that can be used to generate such a variable?

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