| Initialize.corStruct {nlme} | R Documentation |
This method initializes object by evaluating its associated
covariate(s) and grouping factor, if any is present, in data,
calculating various dimensions and constants used by optimization
algorithms involving corStruct objects (see the appropriate
Dim method documentation), and assigning initial values for
the coefficients in object, if none were present.
## S3 method for class 'corStruct' Initialize(object, data, ...)
object |
an object inheriting from class |
data |
a data frame in which to evaluate the variables defined in
|
... |
this argument is included to make this method compatible with the generic. |
an initialized object with the same class as object
representing a correlation structure.
José Pinheiro and Douglas Bates bates@stat.wisc.edu
Pinheiro, J.C., and Bates, D.M. (2000) "Mixed-Effects Models in S and S-PLUS", Springer.
cs1 <- corAR1(form = ~ 1 | Subject) cs1 <- Initialize(cs1, data = Orthodont)