From p.dalgaard at biostat.ku.dk  Wed Oct 11 11:55:56 2006
From: p.dalgaard at biostat.ku.dk (Peter Dalgaard)
Date: 11 Oct 2006 11:55:56 +0200
Subject: [Rd] nls function does not use subset argument (PR#9290)
In-Reply-To: <20061011092903.BB944407EA@slim.kubism.ku.dk>
References: <20061011092903.BB944407EA@slim.kubism.ku.dk>
Message-ID: <x2y7rnuqfn.fsf@viggo.kubism.ku.dk>

tadakado at gmail.com writes:

> Full_Name: Tadashi Kadowaki
> Version: 2.4.0
> OS: Redhat Linux 9
> Submission from: (NULL) (58.12.166.67)
> 
> 
> Doesn't nls function support subset?  It seems not to work.
> And, there are no information in the online help.
> Has it sunk into oblivion?

Whatever gave you those ideas?

Yes, nls supports subset.
Yes, it does seem to work.
Yes, it is documented in the online help.
No, it has not sunk into anything.


> nls(density ~ SSlogis(log(conc), Asym, xmid, scal), DNase, subset=Run==1)
Nonlinear regression model
  model:  density ~ SSlogis(log(conc), Asym, xmid, scal)
   data:  DNase
    Asym     xmid     scal
2.345180 1.483090 1.041455
 residual sum-of-squares: 0.004789569


-- 
   O__  ---- Peter Dalgaard             ?ster Farimagsgade 5, Entr.B
  c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
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[Rd] nls function does not use subset argument (PR#9290)
Peter Dalgaard