logLik.gnls {nlme} | R Documentation

## Log-Likelihood of a gnls Object

### Description

Returns the log-likelihood value of the nonlinear model represented by `object` evaluated at the estimated coefficients.

### Usage

    ## S3 method for class 'gnls'
    logLik(object, REML, ...)

### Arguments

`object` | an object inheriting from class `"gnls"`, representing a generalized nonlinear least squares fitted model.
`REML` | an logical value for consistency with `logLik,gls`, but only `FALSE` is accepted..
`...` | some methods for this generic require additional arguments. None are used in this method.

### Value

the log-likelihood of the linear model represented by `object` evaluated at the estimated coefficients.

### Author(s)

José Pinheiro and Douglas Bates bates@stat.wisc.edu

### See Also

`gnls`, `logLik.lme`

### Examples

    fm1 <- gnls(weight ~ SSlogis(Time, Asym, xmid, scal), Soybean,
                weights = varPower())
    logLik(fm1)

[Package nlme version 3.1-128 Index]