Log-likelihood method for GNARfit objects
Returns the log-likelihood for a GNARfit object.
## S3 method for class 'GNARfit' logLik(object,...)
object |
A |
... |
Optional additional arguments, not used here. |
S3 method for the GNARfit class. The function returns the value of
-TN/2 \log(2 π) - T/2 \log(| Σ |) - 1/2 trace(E Σ^{-1} E'),
where T is the time length of the observations, N is the number of nodes, Σ = E E' /T is the estimated covariance matrix and E is the matrix of residuals.
A logLik object.
#calculate log-likelihood for fiveNode data #global alphas logLik(GNARfit()) #individual alphas logLik(GNARfit(globalalpha=FALSE))
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