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st: RE: listing all observations of particular id's

From   Nick Cox <>
To   "''" <>
Subject   st: RE: listing all observations of particular id's
Date   Sun, 29 Aug 2010 16:30:11 +0100

This is an FAQ. 

An answer is 

egen anyB1 = max(B) , by(id) 
l if anyB1

The rationale is discussed at tedious length in 

How do I create a variable recording whether any members of a group (or all members of a group) possess some characteristic?



Abhimanyu Arora

The basic simplified problem is as follows.
2 variables A (id) and B(0/1)
I would like to list all observations of all A's for which there is at
least one B=1.
-list- lists only the particular observations...

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