Re: Multiple trait model-covariate for one trait only
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Multiple trait model-covariate for one trait only


I have just discovered an important bug in setting up the design matrix
for certain interactions  - mainly  interactions of constrained terms
like c(A).c(B) are affected.  The bug will not affect variance components
but does mess up the interpretation of the constrained fixed effects.
It has not altered any of my test jobs.

If you have predicted means from an analysis with interactions of constrained
terms, you should rerun the job and recalculate the predicted values.

I hope to put a fixed version up later today and will advise.

Please accept my sincerest apology.
Arthur 23 Oct 98


Concerning HUGO's question

Assuming you have the data in the multivariate form,
   tag !P
   y1 y2 y3 y4
   y1 y2 y3 y4 ~ Trait  at(Trait,1).x1  Tr.fix !r Tr.tag
 If you have an older version,  use  Trait|1/x1  instead of   at(Trait,1).x1
> X-Sender:
> Date: Fri, 23 Oct 1998 10:25:46 +1000
> To:
> From: Hugo Montaldo <>
> Subject: Multiple trait model-covariate for one trait only 
> Mime-Version: 1.0
> Hello:
> I have an animal genetic analysis with four traits. One covariate exists
> only for one trait. Shall I define the values for the covariate for the
> other traits as missing, put zeroes or else?.
> Thank you again,
> Hugo
> *******************************
> Hugo H. Montaldo
> Research Fellow
> Division of Animal Science
> University of New England
> Armidale, NSW 2351
> Australia
> Phone 61-2-6773-3004
> Fax   61-2-6773-3275
> e-mail
> ****************************************************************************
> Yo no voy a morirme                         Ya ne umru
> salgo ahora                                 V etot deni zapolnennii vulkanami
> en este dia lleno de volcanes               Razmnozhaiasi
> hacia la multitud                           V zhizni.
> hacia la vida.
> I shall not die                             Je ne vais pas mourir
> I step out now                              Je m'en vais maintenant
> in this day full of volcanoes               dans ce jour plein de volcans
> towards the multitude                       vers la foule
> towards life.                               vers la vie.
> Pablo Neruda (1904-1973), Chilean Poet, 1971 Nobel Prize for Literature
> *****************************************************************************

Arthur Gilmour PhD                    email:
Senior Research Scientist (Biometrics)                 fax: <61> 2 6391 3899
NSW Agriculture                                             <61> 2 6391 3922
Orange Agricultural Institute               telephone work: <61> 2 6391 3815
Forest Rd, ORANGE, 2800, AUSTRALIA                    home: <61> 2 6362 0046

ASREML is currently free by anonymous ftp from pub/aar on
    or point your web browser at 

To join the asreml discussion list, send the message  

The address for messages to the list is

                        <> <> <> <> <> <> <>
"Ye are not your own for ye are bought with a price: therefore glorify God
    in your body, and in your spirit, which are God's" 1 Corinthians 6:20