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Re: st: margins plot after a poisson estimation


From   James Bernard <[email protected]>
To   [email protected]
Subject   Re: st: margins plot after a poisson estimation
Date   Sun, 5 Jan 2014 22:41:39 +0800

Thanks Roger!

On Sun, Jan 5, 2014 at 9:39 PM, Roger B. Newson <[email protected]> wrote:
> Yes, you can use -margins- after -poisson-. And you might like to check out
> the -punaf- package, downloadable from SSC, which is a wrapper for -margins-
> and -nlcom-, in case you wanted to estimate between-scenario ratios instead
> of between-scenario differences. The -punaf- package is discussed at length
> in an article in the latest Stata Journal (Newson, 2014),and was also
> discussed at the 2012 UK Stata User Meeting (Newson, 2012).
>
> I hope this helps.
>
> Best wishes
>
> Roger
>
> References
>
> Newson RB. Attributable and unattributable risks and fractions and other
> scenario comparisons. The Stata Journal 2013; 13(4): 672–698. Purchase from
> http://www.stata-journal.com/article.html?article=st0314
>
> Newson RB. Scenario comparisons: How much good can we do? Presented at the
> 18th UK Stata User Meeting, 13–14 September, 2012. Download from
> http://ideas.repec.org/p/boc/usug12/01.html
>
> Roger B Newson BSc MSc DPhil
> Lecturer in Medical Statistics
> Respiratory Epidemiology, Occupational Medicine
> and Public Health Group
> National Heart and Lung Institute
> Imperial College London
> Royal Brompton Campus
> Room 33, Emmanuel Kaye Building
> 1B Manresa Road
> London SW3 6LR
> UNITED KINGDOM
> Tel: +44 (0)20 7352 8121 ext 3381
> Fax: +44 (0)20 7351 8322
> Email: [email protected]
> Web page: http://www.imperial.ac.uk/nhli/r.newson/
> Departmental Web page:
> http://www1.imperial.ac.uk/medicine/about/divisions/nhli/respiration/popgenetics/reph/
>
> Opinions expressed are those of the author, not of the institution.
>
>
> On 05/01/2014 12:57, James Bernard wrote:
>>
>> Hi all,
>>
>> I am new to stata plots. I have worked with -margins and_marginsplot
>> after -regress-- particularly for a model with quadratic terms.
>>
>> Now, I have a Poisson model. I woudl like to know if I can continue
>> the -margins and -margins plot after xtpoisson-- the same way I did
>> after -regress.
>>
>> Thanks,
>> James
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