Re: st: Generating new lines/record for groups of data

[brendan.halpin@ul.ie (Brendan Halpin)]

On Tue, May 22 2012, Navid Asgari wrote:

> Hi all,
>
> I would like to add new records to my data by groups. My longitudinal
> data-set looks like this (the maximum length of a panel is 4
> years[from 1990 to  1993, but some Firms have less observations, so I
> have an unbalanced panel data])
>
> Firm_ID      Year     var1   Var2
> -------------------------------------------
> G33            1990      2       2.5
> G33            1991      3.4    1.2
> G33            1992      5.6    2.8
> G33            1993      8.1    9.2
> KL1            1992      3       2.22
>
>
> As you can see "G33" has three records from 1990 to 1993... Now I want
> to make it look like a balanced panel data:
>
> Firm_ID      Year     var1   Var2
> -------------------------------------------
> G33            1990      2       2.5
> G33            1991      3.4    1.2
> G33            1992      5.6    2.8
> G33            1993      8.1    9.2
> KL1            1992      3       2.22
> KL1             1990     .         .
> KL1             1991     .         .
> KL1             1993     .         .

I think you need

. fillin Firm_ID Year

Brendan
-- 
Brendan Halpin,   Department of Sociology,   University of Limerick,   Ireland
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