Joseph Coveney and Tom Steichen posted solutions.
For more detailed discussion, see
http://www.stata.com/support/faqs/data/missing.html
Nick
[email protected]
[email protected]
>
> Is there an easy way of implementing the following task in
> STATA? (It
> sounds a very easy task, but it goes beyond my limited
> knowledge of STATA.)
>
> Say, I have a data series with two variables: date, dummy
>
> date dummy
> 1/1/03 1
> 1/2/03 .
> 1/3/03 3
> 1/4/03 .
> 1/5/03 .
> 1/7/03 2
> 1/8/03 .
> 1/9/03 .
> 1/10/03 .
> 1/11/03 4
> 1/12/03 .
> 1/13/03 .
> .......
>
> I just want to fill the missing value, using the previous
> value until it
> changes (or the last-observation-carried-forward method), ie, to get
>
> date dummy
> 1/1/03 1
> 1/2/03 1
> 1/3/03 3
> 1/4/03 3
> 1/5/03 3
> 1/7/03 2
> 1/8/03 2
> 1/9/03 2
> 1/10/03 2
> 1/11/03 4
> 1/12/03 4
> 1/13/03 4
> .......
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