nlme (version 3.1-1)

update.gnls: Update a gnls Object

Description

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

Usage

update(object, model, data, params, start, correlation, weights, subset,
       na.action, naPattern, control, verbose)

Arguments

object

an object inheriting from class gnls, representing a generalized nonlinear least squares fitted model.

other arguments

defined as in gnls. See that function's documentation for descriptions of and default values for these arguments.

Value

• an updated gnls object.

See Also

gnls

Examples

data(Soybean)
fm1 <- gnls(weight ~ SSlogis(Time, Asym, xmid, scal), Soybean,
            weights = varPower())
fm2 <- update(fm1, correlation = corAR1())