| formula.gnls {nlme} | R Documentation |
This method function extracts the nonlinear model formula
associated with x.
formula(x, ...)
x |
an object inheriting from class gnls, representing
a generalized nonlinear least squares fitted model. |
... |
some methods for this generic require additional arguments. None are used in this method. |
a two-sided formula specifying the nonlinear model used to
obtain x.
Jose Pinheiro Jose.Pinheiro@pharma.novartis.com and Douglas Bates bates@stat.wisc.edu
data(Soybean)
fm1 <- gnls(weight ~ SSlogis(Time, Asym, xmid, scal), Soybean,
weights = varPower())
formula(fm1)