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Interactions made easy

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Author Info
André Charlett () (Communicable Disease Surveillance Centre, London)
Neville Verlander
Abstract

The creation and testing of interaction terms in regression models can be very cumbersome, even in Stata 8. We propose a simple wrapping command, -fitint-, that fits any generalised linear model and tests any twoway interactions, as well as all main effects. There is no need to use -xi- because categorical variables are identified with the option . Appropriate tests are chosen depending upon the fitted model.

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Publisher Info
Paper provided by Stata Users Group in its series United Kingdom Stata Users' Group Meetings 2005 with number 05.

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Date of creation: 03 Mar 2005
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Handle: RePEc:boc:usug05:05

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This page was last updated on 2009-10-31.

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