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Re: Weighting

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AHS
e> At 11:44 AM 5/7/2004 -0400, Manny & Hilary wrote:

>From: American Housing Survey (AHS) ListServ <ahs@huduser.gov>
>
>I have been reading the threads on weighting and had a question. I am new to
>using the AHS and am doing a lot of “hands-on” learning. If I am
>trying to
>estimate the number of renter households nationwide with incomes below a
>certain amount, would I use the WEIGHT variable in connection with ZINC to
>estimate this? If so, does the WEIGHT variable need to be manipulated at all
>or do I simply multiply WEIGHT by the number of records with ZINC below my
>income threshold?
>
>Guidance is appreciated. Thanks!

You should sum up WEIGHT for all observations that meet your conditions,
for example, the condition that  ZINC < some_threshold.

Depending on your software and how you use it, this possibly can be handled
automatically.

That was a statistical matter; now for an AHS matter: we often prefer ZINC2
rather than ZINC.

I hope this helps.
-- David

David Kantor
Institute for Policy Studies
Johns Hopkins University
dkantor@jhu.edu
410-516-5404