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)