Re: st: mfp and factor variable

[Richard Williams <richardwilliams.ndu@gmail.com>]

At 10:36 AM 8/4/2011, m. kh wrote:
> Hi all
>
> I am trying to run
>
> . mfp: logit comp i.bmicat age apacheii sex dm admityear
>
> and I got the following message
>
> factor variables and time-series operators not allowed
>
> if I include my categorical variable without i before the variable, 
> it would be
> considered as continuous. Any idea how to overcome this problem.
Can you create the dummy variables yourself? Or maybe use xi, e.g.

sysuse auto
xi: mfp: regress mpg weight displacement i.foreign

Having said that, whenever Stata won't do something that I would 
expect it to allow, I wonder (1) is there a good statistical reason 
for not allowing me to do it, or (2) have they just not gotten around 
to programming it yet?

-------------------------------------------
Richard Williams, Notre Dame Dept of Sociology
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EMAIL:  Richard.A.Williams.5@ND.Edu
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