Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: st: shifting values one period ahead
From
Eric Booth <[email protected]>
To
"<[email protected]>" <[email protected]>
Subject
Re: st: shifting values one period ahead
Date
Wed, 22 Sep 2010 23:19:23 +0000
<>
bys id : g newvar1 = var1[_n-1]
replace newvar = 0 if mi(newvar1)
EAB
__
Eric A. Booth
Public Policy Research Institute
Texas A&M University
[email protected]
On Sep 22, 2010, at 6:13 PM, asb stata wrote:
> I am facing a tricky coding issue that involves creating 'newvar1'
> from 'var1' given 'id' and 'start'. The variable 'newvar1' is obtained
> by shifting 'var1' one period ahead within each 'id'.
>
> id start var1 newvar1
>
> 1 1 1 0
> 1 0 1 1
> 1 0 0 1
> 1 0 0 0
>
> 2 0 0 0
> 2 0 0 0
> 2 1 1 0
> 2 0 0 1
> 2 0 1 0
>
> 3 0 0 0
> 3 0 0 0
> 3 1 1 0
> 3 0 1 1
> 3 0 1 1
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/