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Re: st: Factor variables and outreg/outreg2


From   Richard Williams <richardwilliams.ndu@gmail.com>
To   statalist@hsphsun2.harvard.edu, "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: Factor variables and outreg/outreg2
Date   Fri, 02 Mar 2012 16:25:41 -0500

At 03:49 PM 3/2/2012, Schmidt, William wrote:
I am attempting to use outreg2 but I would like to report a limited set of covariates. I have factor variables in my regression, and they seem to be ignored by the options in outreg. In the example below, for instance, i.foreign##c.weight is not reported.

sysuse auto, clear
regress mpg i.foreign##c.weight i.rep78 headroom
outreg2 using myfile, keep(i.foreign##c.weight headroom) sortvar(headroom i.foreign##c.weight)

This isn't quite right but it may be closer to what you want.

outreg2 using myfile, keep(1.foreign#c.weight headroom) sortvar(headroom i.foreign#c.weight)

Personally, I tend to avoid the ## notation and instead write stuff like

regress mpg i.foreign weight i.foreign#c.weight i.rep78 headroom

It may take more typing but it helps me to keep straight what I am doing. Plus, in various post-estimation commands, you often have to write things like 1.foreign rather than i.foreign. Look at how the regress command labeled each line of the output.


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Richard Williams, Notre Dame Dept of Sociology
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