Extract gnls Object Formula
DESCRIPTION:
This method function extracts the nonlinear model formula
associated with
object
.
USAGE:
formula(object)
REQUIRED ARGUMENTS:
- object
-
an object inheriting from class
gnls
, representing
a generalized nonlinear least squares fitted model.
VALUE:
a two-sided formula specifying the nonlinear model used to
obtain
object
.
SEE ALSO:
EXAMPLES:
fm1 <- gnls(weight ~ SSlogis(Time, Asym, xmid, scal), Soybean,
weights = varPower())
formula(fm1)