Returns the test statistic and p-value determined from a \(\chi^2\)
distribution with \(d_2\) degrees of freedom.
Arguments
object
a model object
...
other parameters which might be required by the model
Author
Thomas Lotze
Details
A generic function for the likelihood ratio test for
equidispersion using the output of a fitted mode. The function invokes
particular methods which depend on the class of the first argument.