Re: st: interactions

[Ernest Berkhout <ernestb@seo.fee.uva.nl>]

At 22:23 25-6-2003, you wrote:
> What's the easiest way to generate all:
>
> 2 way interactions
> 3 way interactions
> .
> .
> .
> n way interactions
>
> when you have many continuous variables to predict a continuous response?
>
> xi seems to only be nice to me with categorical or dummy variables.
xi can do continuous variables as well, but only twoway. There are two 
options that I would think of:

1. use desmat (I have no experience with it myself but it seems a good 
solution and often used around here)
2. create all interaction-variables manually yourself with nested 
foreach/forvalues loops.


Ernest Berkhout
SEO Amsterdam Economics
University of Amsterdam

Room 3.08
Roetersstraat 29
1018 WB Amsterdam
The Netherlands

tel.:+ 31 20 525 1657
fax:+ 31 20 525 1686
http://www.seo.nl
===========================
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