Displaying 2 results from an estimated 2 matches for "gnlsst".
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glsst
2002 Dec 18
1
problem with 'gnls'
...NA NA NA ...
$ Sun.t3 : num NA NA NA NA NA NA NA NA NA NA ...
$ Fz.total.t3 : int NA NA NA NA NA NA NA NA NA NA ...
I also tried with an AR(3) and an AR(1). The AR(3) gives the same
error like above and the AR(1) gives the error:
>> Error in optim(fn = function(gnlsPars) -logLik(gnlsSt, gnlsPars), par = c(coef(gnlsSt)), :
>> initial value in vmmin is not finite
>> In addition: There were 14 warnings (use warnings() to see them)
Thanks for any help
regards
Bruno Tona
2007 Oct 17
2
nmle: gnls freezes on difficult case
Hi,
I am not sure this is a bug but I can repeat it, The functions and data
are below.
I know this is nasty data, and it is very questionable whether a 4pl
model
is appropriate, but it is data fed to an automated tool and I would
have hoped for an error. Does this repeat for anyone else?
My details:
> version
_
platform i686-pc-linux-gnu