Displaying 3 results from an estimated 3 matches for "ruegg".
Did you mean:
ruega
2006 Aug 09
1
scaling constant in optim("L-BFGS-B")
...nstant" that tricks the algo to converge, but does not have a systematic
justification)?
I'd greatly appreciate any hints, tricks or references about the scaling
constant
Thanks for your help!
Simon
********************************************************************
Simon Ruegg
Dr.med.vet., PhD student
Institute for Parasitology
Winterthurstr. 266a
8057 Zurich
Switzerland
phone: +41 44 635 85 93
fax: +41 44 635 89 07
e-mail: s.ruegg@access.unizh.ch
[[alternative HTML version deleted]]
2007 Jan 10
2
problems with optim, "for"-loops and machine precision
...bove, the same impossible results occurred again.
Can anyone tell me where I should be looking for the problem, or what it is
and how I could solve it?
Thanks a lot for your help
Sincerely
Simon
********************************************************************
Simon Ruegg
Dr.med.vet., PhD candidate
Institute for Parasitology
Winterthurstr. 266a
8057 Zurich
Switzerland
phone: +41 44 635 85 93
fax: +41 44 635 89 07
e-mail: s.ruegg@access.unizh.ch
[[alternative HTML version deleted]]
2006 Aug 26
1
problems with loop
...uot; || tmp2=="NaN"){tmp2=-700}
LLsum=LLsum+tmp1+tmp2
}
}
}
}
return(-LLsum)
}
********************************************************************
Simon Ruegg
Dr.med.vet., PhD student
Institute for Parasitology
Winterthurstr. 266a
8057 Zurich
Switzerland
phone: +41 44 635 85 93
fax: +41 44 635 89 07
e-mail: s.ruegg@access.unizh.ch
[[alternative HTML version deleted]]