[R] 1-d function fitting

Peter Dalgaard p.dalgaard at biostat.ku.dk
Thu Oct 25 23:37:50 CEST 2007


Rolf Turner wrote:
> On 26/10/2007, at 10:14 AM, m p wrote:
>
>   
>> Hello,
>> I'd like to check if my data can be well approximated  with a function
>> (1+x/L) exp(-x/L)
>> and calculate the best value for L. Is there some package in R that  
>> would simplify that task?
>> Thanks,
>> Mark
>>     
>
> 	Is this a homework question?
>
> 			cheers,
>
> 				Rolf Turner
>
>
>   
Hmm, I wouldn't pose a question like that. It could be related to a 
homework problem, but I don't think it actually is one. And nls() et al. 
is merged into the stats package these days, so in a sense, you don't 
even need to know the package. example(nls) should be enough to get rolling.


-- 
   O__  ---- Peter Dalgaard             Øster Farimagsgade 5, Entr.B
  c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
 (*) \(*) -- University of Copenhagen   Denmark          Ph:  (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)                  FAX: (+45) 35327907



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