Stata The Stata listserver
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

st: RE: RE: how to create groups


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: RE: how to create groups
Date   Tue, 24 Sep 2002 17:26:05 +0100

My reply to Radu Ban

> I am going to interpret this as two Stata variables
> called -what- and -value-. 
> 
> First, we pull out the Group identifiers. 
> One way to select them is that the previous 
> value of -what- is missing. (This holds for the
> very first as well.) 

The reasoning here is loose. This condition also applies
to other observations as well, but for those
the Group is blank, so that doesn't matter, 
I think. 

What's more sensitive is that the procedure 
does assume some blanks separating each
pair of subgroups, i.e. that the number in each  
subgroup is at least 3. 

Nick 
n.j.cox@durham.ac.uk 

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index