Re: st: fractional logit?

[Viktor Slavtchev <viktor.slavtchev@uni-jena.de>]

Martin, thank so much.
I think that is exactly what I need.
warm regards
viktor


Maarten buis wrote:
> This looks like a case for -dirifit-, which can be downloaded from
> -ssc-. This command was discussed at the UK Stata Users' Group Meeting
> in 2006. The slides of that talk can be found on
> http://home.fsw.vu.nl/m.buis/software/dirifit.html.
>
> Hope this helps,
> Maarten
>
> --- Viktor Slavtchev <viktor.slavtchev@uni-jena.de> wrote:
>
>   
> > Dear all,
> > I have the following questoin:
> > I have individual data where people report the share of time they
> > spend 
> > in five distinct activities. People can do more than one activity
> > every 
> > day: first jogging, then go to work, then shopping, whatever. That
> > is, 
> > there are five observation per ID individual. Actually, the ID is the
> >
> > (each person's) day. I wish to explore the individual characteristics
> >
> > determining the share of time spent for each activity.
> > As the dependent variable is a share [0;1] I was thinking about 
> > fractional logit. In Stata it would be (I guess):
> > glm y x, family(binomial) link(logit).
> > However, I am not clear whether fractional logit can be applied on
> > the 
> > original data, or the data have first to be transformed in some way.
> > Moreover, in doing -glm- live above I implicitly assume that each 
> > observation is independent which is definitely not true.
> > Does anybody know some solution?
> > Any help is greatly appreciated.
> > thanks a lot
> > viktor
> > *
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> >
> >     
>
> -----------------------------------------
> Maarten L. Buis
> Department of Social Research Methodology
> Vrije Universiteit Amsterdam
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> The Netherlands
>
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