Log-Likelihood of a gnls Object — logLik.gnls • nlme

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

# 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

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)
#> 'log Lik.' -486.8974 (df=5)