[R-sig-ME] correlated samples

[Joaquín Aldabe]

By the way..I don´t see why it is relatively easy to show that Yi is
normally distributed..(in fact, the Y variable is count so it should be
poisson). This is in section 5.4 (p. 112) of Zuur et al (2009).
Thanks,
joaquín.

2016-07-12 10:52 GMT-03:00 Thierry Onkelinx <thierry.onkelinx at inbo.be>:

> Dear Joaquin,
>
> Yes. I think you have found a typo. The prior to equation 5.13 should read
> "It is relatively easy to show that $Y_i$ is normally distributed ..."
>
> Best regards,
>
> ir. Thierry Onkelinx
> Instituut voor natuur- en bosonderzoek / Research Institute for Nature and
> Forest
> team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance
> Kliniekstraat 25
> 1070 Anderlecht
> Belgium
>
> To call in the statistician after the experiment is done may be no more
> than asking him to perform a post-mortem examination: he may be able to say
> what the experiment died of. ~ Sir Ronald Aylmer Fisher
> The plural of anecdote is not data. ~ Roger Brinner
> The combination of some data and an aching desire for an answer does not
> ensure that a reasonable answer can be extracted from a given body of data.
> ~ John Tukey
>
> 2016-07-11 21:36 GMT+02:00 Joaquín Aldabe <joaquin.aldabe at gmail.com>:
>
>> Sorrry, I hadn´t copied the whole group. Here it goes: Thanks Thierry,
>>> I´ve been there a couple of times. I´ll try again. I think there is a
>>> mistake in page 112 when says: It is relatively easy to show that Vi is
>>> normally distributed with mean X i × β and variance V i in mathematical
>>> notation...
>>>
>>> It should say Yi instead of Vi, right?
>>>
>>> Cheers,
>>> Joaquín .
>>>
>>> 2016-07-08 9:02 GMT-03:00 Thierry Onkelinx <thierry.onkelinx at inbo.be>:
>>>
>>>> Dear Joaquin,
>>>>
>>>> I'd recommend Zuur et al 2009, section 5.4
>>>>
>>>> Best regards,
>>>>
>>>> ir. Thierry Onkelinx
>>>> Instituut voor natuur- en bosonderzoek / Research Institute for Nature
>>>> and Forest
>>>> team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance
>>>> Kliniekstraat 25
>>>> 1070 Anderlecht
>>>> Belgium
>>>>
>>>> To call in the statistician after the experiment is done may be no more
>>>> than asking him to perform a post-mortem examination: he may be able to say
>>>> what the experiment died of. ~ Sir Ronald Aylmer Fisher
>>>> The plural of anecdote is not data. ~ Roger Brinner
>>>> The combination of some data and an aching desire for an answer does
>>>> not ensure that a reasonable answer can be extracted from a given body of
>>>> data. ~ John Tukey
>>>>
>>>> 2016-07-07 20:17 GMT+02:00 Joaquín Aldabe <joaquin.aldabe at gmail.com>:
>>>>
>>>>> Dear all, I´m a basic user of mixed models but there are things that
>>>>> I´ve
>>>>> found hard to understand. On of these is how the model solves the
>>>>> correlations among samples taken in the same site or levels of other
>>>>> kind
>>>>> of grouping variable.
>>>>>
>>>>> I´ve consulted Bolker (2015) in G. Fox et al Ed., Zuur et al 2009 and
>>>>> part
>>>>> of Pinheiro and Bates (2000). But still don´t understand the way that
>>>>> GLMM
>>>>> include the correlation effect in the predictions of the model.
>>>>>
>>>>> I really appreciate any comment and/or bibliographic reference that
>>>>> help me
>>>>> understand this.
>>>>>
>>>>> Thanks in advanced,
>>>>> Joaquín.
>>>>>
>>>>> --
>>>>> *Joaquín Aldabe*
>>>>>
>>>>> *Grupo Biodiversidad, Ambiente y Sociedad*
>>>>> Centro Universitario de la Región Este, Universidad de la República
>>>>> Ruta 15 (y Ruta 9), Km 28.500, Departamento de Rocha
>>>>>
>>>>> *Departamento de Conservación*
>>>>> Aves Uruguay
>>>>> BirdLife International
>>>>> Canelones 1164, Montevideo
>>>>>
>>>>> https://sites.google.com/site/joaquin.aldabe
>>>>> <https://sites.google.com/site/perfilprofesionaljoaquinaldabe>
>>>>>
>>>>>         [[alternative HTML version deleted]]
>>>>>
>>>>> _______________________________________________
>>>>> R-sig-mixed-models at r-project.org mailing list
>>>>> https://stat.ethz.ch/mailman/listinfo/r-sig-mixed-models
>>>>
>>>>
>>>>
>>>
>>>
>>> --
>>> *Joaquín Aldabe*
>>>
>>> *Grupo Biodiversidad, Ambiente y Sociedad*
>>> Centro Universitario de la Región Este, Universidad de la República
>>> Ruta 15 (y Ruta 9), Km 28.500, Departamento de Rocha
>>>
>>> *Departamento de Conservación*
>>> Aves Uruguay
>>> BirdLife International
>>> Canelones 1164, Montevideo
>>>
>>> https://sites.google.com/site/joaquin.aldabe
>>> <https://sites.google.com/site/perfilprofesionaljoaquinaldabe>
>>>
>>>
>>
>>
>> --
>> *Joaquín Aldabe*
>>
>> *Grupo Biodiversidad, Ambiente y Sociedad*
>> Centro Universitario de la Región Este, Universidad de la República
>> Ruta 15 (y Ruta 9), Km 28.500, Departamento de Rocha
>>
>> *Departamento de Conservación*
>> Aves Uruguay
>> BirdLife International
>> Canelones 1164, Montevideo
>>
>> https://sites.google.com/site/joaquin.aldabe
>> <https://sites.google.com/site/perfilprofesionaljoaquinaldabe>
>>
>>
>


-- 
*Joaquín Aldabe*

*Grupo Biodiversidad, Ambiente y Sociedad*
Centro Universitario de la Región Este, Universidad de la República
Ruta 15 (y Ruta 9), Km 28.500, Departamento de Rocha

*Departamento de Conservación*
Aves Uruguay
BirdLife International
Canelones 1164, Montevideo

https://sites.google.com/site/joaquin.aldabe
<https://sites.google.com/site/perfilprofesionaljoaquinaldabe>

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