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Re: st: A query about min in stata


From   "Eva Poen" <eva.poen@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: A query about min in stata
Date   Fri, 22 Aug 2008 11:55:29 +0100

Ashim,

if you can -tsset- your data, you could do

gen min = min(r, L1.r, L2.r, L3.r)

etc. up to L9.r. If your data are not a time series or a panel, you
can still generate a row identifier and -tsset- on that:

gen id = _n
tsset id

Hope this helps,
Eva


2008/8/22 Ashim Kapoor <ashimkapoor@gmail.com>:
> Hello everyone,
>
> I am trying to do the following : -
>
> I have a variable r. I want to create a variable m=min( r, r[_n-1],
> ... ,r[_n-9])
>
> I guess I can use a while loop to do this but that is quite slow. An
> alternative would be to define r0=r,r1=r[_n-1],..,r9=r[_n-9]
> and then say m=rmin ( r0 r1 ... r9).
>
> My question is that is there a built in way in stata to do this ? like
> say by using egen ?
>
> Thank you all for your time and effort.
>
> Ashim. : )
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