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
--
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