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oh_fit3
2011 Jan 24
0
tolerance limits for nls predicted values
...sing the tolerance package
but the self-starting functions are not in the derivitive tables. When I
spellout the functions and supply starting values I repeatedly get an
error message regardless of the starting values I use (see output below).
Does anyone have a solution for this problem?
> oh_fit2<-nls(MBB ~ SSfpl(AGE, a, b, c, d))
> oh_fit2
Nonlinear regression model
model: MBB ~ SSfpl(AGE, a, b, c, d)
data: parent.frame()
a b c d
9.308 36.420 67.982 12.815
residual sum-of-squares: 46834
Number of iterations to convergence: 9
Achieved convergence tol...