Dear Colleagues,
 
Does anyone know how to convert this script of random effects in lme( ) into a similar one in lmer( ):
 
random=pdIdent(~-1+Zstarnew+Sex+day_of_year+year)
 
where, Zstarnew is a matrix, Sex a factor and day_of_year and year numeric.
 
I get confused with the pdIdent function. As you can guess I am modifying a script written by someone else.
 
Many thanks in advance
 
Javier
 
 
Dr. Javier Perez-Barberia
Population and evolutionary ecologist
The Macaulay Institute
Craigiebuckler
Aberdeen 
AB15 8QH
Scotland, UK

Tel: +44(0)1224 395221
e-mail: j.perez-barberia@macaulay.ac.uk
http://www.macaulay.ac.uk
http://www.macaulay.ac.uk/upland

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