help center ; center allows for by prefix.
Kit Baum, Boston College Economics
http://ideas.repec.org/e/pba1.html
On Feb 4, 2006, at 2:33 AM, statalist-digest wrote:
I want to manually demean my data to use in a separate fixed effects
regression model. If "id" marks each individual, and "year" marks
each year of data, how can I manually demean this data (ie subtract
the mean [across years[ of each variable marked by "id")?
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