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AW: st: Use egen command with time series operator


From   "Klepsch, Catharina" <[email protected]>
To   "[email protected]" <[email protected]>
Subject   AW: st: Use egen command with time series operator
Date   Thu, 28 Nov 2013 10:08:13 +0100

Dear Prakash,

thank's for the advice, but this doesn't work, too.

Any other ideas?

-----Ursprüngliche Nachricht-----
Von: [email protected] [mailto:[email protected]] Im Auftrag von Prakash Singh
Gesendet: Donnerstag, 28. November 2013 10:04
An: statalist
Betreff: Re: st: Use egen command with time series operator

Dear Catharina
try this
egen mean_x1 = mean(l.x1), by(ID YEAR)

Hope it helps you.

Prakash

On Thu, Nov 28, 2013 at 1:33 PM, Klepsch, Catharina <[email protected]> wrote:
> Dear Stata Users,
>
> I was wondering whether it is possible to use the egen command with time series operators.
> For example, I tried to generate the mean value for a lagged variable and used:
>
> sort ID YEAR
> egen mean_x1 = mean(l.x1)
>
> Unfortunately, there occurs an error message which states:
> not sorted r(5)
>
> I'm not quite sure why this happens, because I sorted the data before. Even if I type:
> bys ID YEAR: egen mean_x1 = mean(l.x1)
>
> the same error message occurs.
>
> Any ideas how I can fix that? Please consider that it is not reasonable for my programming to first generate the lag/lead and then generate the mean.
>
> Thank's for any help.
> Catharina
>
>
>
>
>
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