Bookmark and Share

Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: st: Problem creating lag variable in panel data

From   Fernando Rios Avila <>
Subject   Re: st: Problem creating lag variable in panel data
Date   Tue, 17 Dec 2013 14:09:50 -0500

Hi Michael,
That is a miss understanding.
The right way to get the 1 year lag is:
gen lroi=l.roi
(lower case L)
what you are doing is a handy way to create dummies.

On Tue, Dec 17, 2013 at 2:02 PM, Michael Riechert
<> wrote:
> Dear all,
> I still facing problem while creating a lag variable within my panel data. I have
> multiple cross sectional units (companies) and years. I used xtset to define
> panel structure and then  gen roi1=1.roi to create a 1-year lag variable
> of the original variable roi. But the new variable only contains zeros. The
> same is true for other variables. I am sure I did something wrong but have no
> clue so far what it is. I appreciate every hint you will give me. Thank you!
> Best regards,
> Michael
> *
> *   For searches and help try:
> *
> *
> *
*   For searches and help try:

© Copyright 1996–2018 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   Site index