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Re: st: Use egen command with time series operator


From   Prakash Singh <[email protected]>
To   statalist <[email protected]>
Subject   Re: st: Use egen command with time series operator
Date   Thu, 28 Nov 2013 14:33:30 +0530

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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