Extract nlme Object Formula
Usage
formula(object)
Arguments
object
|
an object inheriting from class nlme , representing
a fitted nonlinear mixed-effects model.
|
Description
This method function extracts the nonlinear model formula
associated with object
.Value
a two-sided nonlinear formula specifying the model used to
obtain object
.Author(s)
Jose Pinheiro and Douglas BatesSee Also
nlme
Examples
library(lme)
data(Soybean)
fm1 <- nlme(weight ~ SSlogis(Time, Asym, xmid, scal), data = Soybean,
fixed = Asym + xmid + scal ~ 1, start = c(18, 52, 7.5))
formula(fm1)