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Re: st: Calculating SD of a variable

From   Oliver Jones <>
Subject   Re: st: Calculating SD of a variable
Date   Fri, 20 May 2011 13:07:08 +0200

Am 20.05.2011 13:01, schrieb Oliver Jones:

Leave out the variable year in the by() option and that should do what
you want.

Or leave out the variable countryno.
It depends on your aim:
- sd over time for each country , or
- sd over countries for each year

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