[Rd] [Fwd: behavior of L-BFGS-B with trivial function triggers bug in stats4::mle]

Prof Brian Ripley ripley at stats.ox.ac.uk
Wed Aug 15 20:32:59 CEST 2007


On Tue, 14 Aug 2007, Peter Dalgaard wrote:

> Ben Bolker wrote:
>> Petr Savicky <savicky <at> cs.cas.cz> writes:
>>
>>
>>
>>> Could you also include a script, which reproduces the problem? Just
>>> to see under which conditions the problem occurs and how it
>>> looks like exactly.
>>>
>>> Petr Savicky.
>>>
>>>
>>
>>   The original post has such a script, just under the dashed line
>> and above the diff/patch.  Sorry if I wasn't clear about that.
>>
>>
> Patch inserted in r-devel now.

And all optim() methods now work on zero-length 'par'.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595



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