The Variance formulae in section 5.2 of the manual are derived from
page 180/181 of 3rd Edition Mood Graybill and Boes
Introduction to the Theory of Statistics
where they present the variance of a ratio.
Arthur
> From: Alastair Currie <A.J.Currie@massey.ac.nz>
> To: Arthur Gilmour <gilmoua@agric.nsw.gov.au>
> Subject: Reference for variance of genetic components
> Date: Mon, 8 Jun 1998 11:02:40 +1200
> X-MSMail-Priority: Normal
> X-Priority: 3
> MIME-Version: 1.0
> Content-Transfer-Encoding: 7bit
>
> Dear Arthur Gilmour,
>
> I am a PhD student of Dorian Garrick's and I have been using your ASREML
> program to estimate genetic correlations and heritibilities and their
> variances with the PIN files. I have found the formulae that you used to
> calculate the variance of the heritability and genetic correlation (Chapt
> 5.2) but I would appreciate it if you could please send me the reference(s)
> that explain the derivation of these formulae?
>
> Thanks for your help,
>
> Alastair Currie
>
> ----------------------------------------------------------------------------
> ----------
> Institute of Veterinary, Animal and Biomedical Sciences
> Vet Tower
> Massey University
> Private Bag 11 222
> Palmerston North
> phone 06-356 9099 ext 6178 or 06-354 2779
> fax 06-350 5699
> ----------------------------------------------------------------------------
> ----------
>
<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Arthur Gilmour PhD email: Arthur.Gilmour@agric.nsw.gov.au
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 ftp.res.bbsrc.ac.uk
Point your web browser at ftp://ftp.res.bbsrc.ac.uk/pub/aar/
in the IACR-Rothamsted information system http://www.res.bbsrc.ac.uk/
To join the asreml discussion list, send the message
subscribe
to asreml-request@chiswick.anprod.CSIRO.au
The address for messages to the list is asreml@chiswick.anprod.CSIRO.au
<> <> <> <> <> <> <>
"Seek first the kingdom of God and His righteousness" Jesus; Matthew 6: 33
<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>