update.gls {nlme}R Documentation

Update a gls Object

Description

The non-missing arguments in the call to the update.gls method replace the corresponding arguments in the original call used to produce object and gls is used with the modified call to produce an updated fitted object.

Usage

update(object, model, data, correlation, weights, subset, method,
       na.action, control)

Arguments

object an object inheriting from class gls, representing a generalized least squares fitted linear model.
other arguments defined as in gls. See that function's documentation for descriptions of and default values for these arguments.

Value

an updated gls object.

Author(s)

Jose Pinheiro and Douglas Bates

See Also

gls

Examples

data(Ovary)
fm1 <- gls(follicles ~ sin(2*pi*Time) + cos(2*pi*Time), Ovary,
           correlation = corAR1(form = ~ 1 | Mare))
fm2 <- update(fm1, weights = varPower())

[Package Contents]