[R] arg min ???

Peterko lanikpeter at gmail.com
Thu Nov 26 09:14:47 CET 2009


Petr that is what i was looking for.
Thanks

p.s. "ak si nahodou z Prahy mas u mna Pivo"

Petr Pikal wrote:
> 
> Hi
> 
> r-help-bounces at r-project.org napsal dne 25.11.2009 16:50:49:
> 
>> 
>> This is nice, but i have to define vector of possible theta, this is not 
> what
>> i want to do.
>> I have vector of unknow parameters theta. I have som estimate of theta, 
> but
>> i want to do better estimate of them, using some criterion function. 
>> I mean it is clasical argmin f(x_1,x_2,...x_n)  to fit vector
>> (x_1,x_2...,x_n)` 
> 
> I am not sure what you mean by argmin, but maybe you could look at ?optim
> 
> Regards
> Petr
> 
>> 
>> 
>> David Winsemius wrote:
>> > 
>> > 
>> > On Nov 25, 2009, at 9:15 AM, Peterko wrote:
>> > 
>> >>
>> >> Is there function what aproximate vector of parameters some function 
>> >> to
>> >> minimum ?
>> >>
>> >> tet={tet1,tet2} .... i have they starting value
>> >>
>> >> and i want to find the tet what minimalizing some function of tet ?
>> > 
>> > ?which.min
>> > 
>> > Perhaps:
>> > 
>> >   which.min( fn(tet) )
>> > 
>> >>
>> >> thanks
>> >> -- 
>> >> View this message in context:
>> >> http://old.nabble.com/arg-min-----tp26513358p26513358.html
>> >> Sent from the R help mailing list archive at Nabble.com.
>> >>
>> >> ______________________________________________
>> >> R-help at r-project.org mailing list
>> >> https://stat.ethz.ch/mailman/listinfo/r-help
>> >> PLEASE do read the posting guide
>> >> http://www.R-project.org/posting-guide.html
>> >> and provide commented, minimal, self-contained, reproducible code.
>> > 
>> > David Winsemius, MD
>> > Heritage Laboratories
>> > West Hartford, CT
>> > 
>> > ______________________________________________
>> > R-help at r-project.org mailing list
>> > https://stat.ethz.ch/mailman/listinfo/r-help
>> > PLEASE do read the posting guide
>> > http://www.R-project.org/posting-guide.html
>> > and provide commented, minimal, self-contained, reproducible code.
>> > 
>> > 
>> 
>> -- 
>> View this message in context: 
> http://old.nabble.com/arg-min-----tp26513358p26515110.html
>> Sent from the R help mailing list archive at Nabble.com.
>> 
>> ______________________________________________
>> R-help at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide 
> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
> 
> 

-- 
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