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Re: st: RE: non-constant Frequency weights
From
Stephen O Neill <[email protected]>
To
[email protected]
Subject
Re: st: RE: non-constant Frequency weights
Date
Tue, 26 Oct 2010 11:23:39 -0700 (PDT)
Hi Nick,
When I try to run - xtreg,fe - I get the error message "weight must be constant
within ID", where ID is my unique identifier for each individual and is constant
for an individual over time. I also wanteed to use the user written - xtabond2 -
or some other dynamic model but it appears that weights can't be used with
these.
Stephen
----- Original Message ----
From: Nick Cox <[email protected]>
To: "[email protected]" <[email protected]>
Sent: Tue, October 26, 2010 6:32:47 PM
Subject: st: RE: non-constant Frequency weights
I don't see the connections between these statements. A variable containing
frequency weights can vary between observations, in this instance within panels
as well as between panels, so that is not a problem in itself.
Perhaps some particular procedures have more restricted assumptions, but you
don't say what they are.
Nick
[email protected]
Stephen O Neill
I am using unbalanced panel data which contains a frequency weight each year.
However the weight is not constant through time with the result that I cannot
weight the data using - [fweight = weight] - . I was just wondering if there is
a simple work around?
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