[S] nls

[Xin_Tian@bdhq.bd.com]

          Does anyone know the algorithm used in the Splus function(Splus 4.5 or
2000 for windows) " predict.nls"
 or the predicted interval for future values generated  from the " Statistics
menu--regression---nonlinear--predict "?
    Is it the result  of the asymtotic linearity (Taylor expansion
approximation)?
       How can I see the C code used in some internal Splus functions? Do I have
to use a compiler  ?
         Thank you for any suggestions.

Xin Tian


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