| formula.groupedData(nlme) | R Documentation |
This method function extracts the display formula associated with a
groupedData object. This is a two-sided formula of the form
resp ~ cov | group, where resp is the response,
cov is the primary covariate, and group is the grouping
structure.
formula(object)
object |
an object inheriting from class groupedData. |
a two-sided formula with a conditioning expression, representing the
display formula for object.
Jose Pinheiro and Douglas Bates
library(nlme) data(Orthodont) formula(Orthodont)