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Re: st: to write _n in [./.] form


From   Nick cox <njcoxstata@gmail.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: to write _n in [./.] form
Date   Sat, 26 Feb 2011 08:48:03 +0000

This sounds like a problem in spells. You might check out -tsspell- from SSC and/or my article in Stata Journal 7(2): 249-265 (2007) which is accessible to non-subscribers. They provide and explain machinery that might help.

On 25 Feb 2011, at 18:59, ajjee <ajjee1@yahoo.com> wrote:


Dear All

I have to calculate a variable in this way

gen awc_4=1 if awc[_n]==1 & awc[_n+1]!=1 & awc[_n+2]!=1 & awc[_n+3]! =1 &
awc[_n+4]!=1

and on basis of the above variable, generate a new variable of average

gen rgg3avgf=( rgg[_n]+ rgg[_n+1]+ rgg[_n+2])/3 if  awc_4[_n-1]==1

Is there a way to write the above commands in short form ( like, _n/ _n+3) ....
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