maxLik (version 0.5-6)

logLik.maxLik: Return the log likelihood value

Description

Return the log likelihood value of objects of class maxLik and summary.maxLik.

Usage

## S3 method for class 'maxLik':
logLik( object, \dots )
## S3 method for class 'summary.maxLik':
logLik( object, \dots )

Arguments

object

object of class maxLik or summary.maxLik, usually a model estimated with Maximum Likelihood

...

additional arguments to methods

Value

• A single numeric, log likelihood of the estimated model

See Also

maxLik

Examples

## ML estimation of exponential duration model:
t <- rexp(100, 2)
loglik <- function(theta) log(theta) - theta*t
gradlik <- function(theta) 1/theta - t
hesslik <- function(theta) -100/theta^2
## Estimate with analytic gradient and hessian
a <- maxLik(loglik, gradlik, hesslik, start=1)
## print log likelihood value
logLik( a )
## print log likelihood value of summary object
b <- summary( a )
logLik( b )