[R] Results of nls

Peter Dalgaard p.dalgaard at biostat.ku.dk
Thu Dec 9 23:47:22 CET 2004

"Y. C. Tao" <nov_tao at yahoo.com> writes:

> This might be an easy question.
> I tried to catch the results of nls, but to no avail.
> For example, if I try to fit a modle y~A*x*x+B*x+C
> nls will print out what A, B, and C, but how can I
> store these numbers to a different variable so that I
> can make use of them? I tried to "unclass" the result
> of nls, but couldn't see any of the parameters.


The coefficients *are* in the nls object, but it's a little


which in turns picks out the stored parameters from it's own lexical
scope. If you want to "burglarize" it, try


but in general you're supposed to use access functions like coef() so
that you don't need to know about the internals (they might change!).

   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907

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