logLik.GNARfit function

Log-likelihood method for GNARfit objects

Returns the log-likelihood for a GNARfit object.

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

Arguments

• object: A GNARfit object generated by a GNARfit call.
• ...: Optional additional arguments, not used here.

Details

S3 method for the GNARfit class. The function returns the value of

where $T$ is the time length of the observations, $N$ is the number of nodes, $\Sigma = E E' /T$ is the estimated covariance matrix and $E$ is the matrix of residuals.

Returns

A logLik object.

Examples

#calculate log-likelihood for fiveNode data
#global alphas
logLik(GNARfit())
#individual alphas
logLik(GNARfit(globalalpha=FALSE))