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From |
Maarten Buis <maartenlbuis@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: fixed and random effects for longitudinal censored continuous data |

Date |
Fri, 14 Oct 2011 17:37:12 +0200 |

Hard to say, as whether a model is correct depends on so many things. But in principle I could imagine that that such models could work for such data. On Fri, Oct 14, 2011 at 5:23 PM, House Wang <jwanghouse@gmail.com> wrote: > Maarten, Thank you very much. > > The D.V. is not a usual proportional, though it looks like proportional data. > It is the sum of three proportional scores divided by three, though > the result is never bigger than 0.8. > For this kind of data, do you still think the model you mentioned is > good? Thanks. > > Jianying > > > On Fri, Oct 14, 2011 at 10:13 AM, Maarten Buis <maartenlbuis@gmail.com> wrote: >> On Fri, Oct 14, 2011 at 4:10 PM, House Wang wrote: >>> The data is proportional data, lasting from 0 to 1, without either 0 >>> or 1. And the data is longitudinal across 30 years. In the model, I >>> want to address the fixed and random effects of years OR congresses >>> (every two years). >>> >>> I have found: xttobit can address random effects for longitudinal >>> censored continuous data, but I do not know how to address fixed >>> effects. >>> >>> My questions: >>> 1, what are the correct command of STATA to address fixed effects for >>> longitudinal censored continuous data. Any good examples? >>> >>> 2, xttobit can address random effects, but can you recommend any good >>> examples? >> >> I don't think a tobit model particularly useful for modeling >> proportions as the logic of that model does not correspond well with >> proportions. You are probably better of with some models for >> fractional logit models for panel data proposed by Jeffrey Wooldridge >> at the 2008 North American Stata Users' meeting: >> >> http://ideas.repec.org/p/boc/nsug08/17.html >> >> Hope this helps, >> Maarten >> >> -------------------------- >> Maarten L. Buis >> Institut fuer Soziologie >> Universitaet Tuebingen >> Wilhelmstrasse 36 >> 72074 Tuebingen >> Germany >> >> >> http://www.maartenbuis.nl >> -------------------------- >> * >> * For searches and help try: >> * http://www.stata.com/help.cgi?search >> * http://www.stata.com/support/statalist/faq >> * http://www.ats.ucla.edu/stat/stata/ >> > > * > * For searches and help try: > * http://www.stata.com/help.cgi?search > * http://www.stata.com/support/statalist/faq > * http://www.ats.ucla.edu/stat/stata/ > -- -------------------------- Maarten L. Buis Institut fuer Soziologie Universitaet Tuebingen Wilhelmstrasse 36 72074 Tuebingen Germany http://www.maartenbuis.nl -------------------------- * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**References**:**st: fixed and random effects for longitudinal censored continuous data***From:*House Wang <jwanghouse@gmail.com>

**Re: st: fixed and random effects for longitudinal censored continuous data***From:*Maarten Buis <maartenlbuis@gmail.com>

**Re: st: fixed and random effects for longitudinal censored continuous data***From:*House Wang <jwanghouse@gmail.com>

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