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st: RE: statalist-digest V4 #4433
From
"Seed, Paul" <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: RE: statalist-digest V4 #4433
Date
Sun, 19 Feb 2012 20:20:21 +0000
On Sat, Feb 18 2012, David Cefskimal wrote:
> I am using the -cluster kmeans- command to look for opinion clusters
[...]
> kmeans- command. How to change the code including the weighting
> variable w1?
Asssuming that values of w1 are integer, David can use
expand w1
cluster kmeans v1 v2 v3 v4 v5 v6 if vC==1, k(4)
If they are simple fractions, he can use
gen w2 = w1*12
expand w1
cluster kmeans v1 v2 v3 v4 v5 v6 if vC==1, k(4)
Any significance tests & confidence intervals will be invalid; but
if you are using cluster solely as a descriptive tool,
you won't want those anyway.
Paul Seed
King's College London, Division of Women's Health
(& Department of Primary Care and Public Health Sciences)
St Thomas' Hospital, Westminster Bridge Road, London SE1 7EH
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