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Re: st: how to generate mean for a secquence of five year of a variable


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: how to generate mean for a secquence of five year of a variable
Date   Thu, 5 May 2011 18:50:58 +0100

Here is one way to do it.

bysort countryid (yearid) : gen order = _n
by countryid : egen first5 = mean(var1) if order <= 5
by countryid : replace order = _N - order + 1
by countryid (yearid) : egen last5 = mean(var1) if order <= 5
gen var2 = min(first5, last5)

On Thu, May 5, 2011 at 6:36 PM, prakash singh <prakashbhu@gmail.com> wrote:
> Thank Nick and Oliver for generating discussion which helped me coming
> across the command lowess thanks a lot but what I mean (let me try
> again to put my query in a better way) is: mean of only firs five
> observation and then mean of last five obesrvation for each country.
> the excercise is purely related to understanding the behaviour of the
> variable at both ends not an ecoonmetric excercise.
>
> I render my sincere apology if due to capacity constraint I am not
> able to explain the query in a appropriate way.
>
> Prakash
>
>
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