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st: compositional variable [was: From: "E. Golovko" <>]

From   Maarten buis <>
Subject   st: compositional variable [was: From: "E. Golovko" <>]
Date   Wed, 5 Mar 2008 17:17:57 +0000 (GMT)

--- wrote:
> I would like to estimate the following model:
> i have n firms, each firm has a bundle of 3 products, characterized
> by the different resource allocation for each product, measured in %
> which sums up to 100%.


Please use informative subject headings. Statalist gets quite a few
messages and many people just scan the subjects to choose what
interests them.

If you divide your percentages by 100 (to get proportions) you can use 
-dirifit-. You can get -dirifit- by typing within Stata: 
ssc install dirifit 

You can find more about -dirifit- on

Hope this helps,

Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands

visiting address:
Buitenveldertselaan 3 (Metropolitan), room Z434

+31 20 5986715

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