Dave asked
On Thu, 9 Dec 2004 14:34:13 -0500 (EST), David K Evans
<[email protected]> wrote:
> I have a dataset of campaign contributions, with observations at the level
> of each individual contribution. I want to generate a dataset in which the
> unit of observation is the donor-year. But if I use 'egen' to generate
> donor-year means, those donors who didn't give in a particular year will
> not appear at all. I want them to appear as zeros. Is there any way to add
> these observations?
the -fillin- command seems like it would work, i.e.
fillin donor year
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