Compare two nested models using D1-statistic
D1(fit1, fit0 = NULL, df.com = NULL, ...)An object of class mira, produced by with().
An object of class mira, produced by with(). The
model in fit0 is a nested within fit1. The default null
model fit0 = NULL compares fit1 to the intercept-only model.
A single number or a numeric vector denoting the
complete-data degrees of freedom for the hypothesis test. If not specified,
it is set equal to df.residual of model fit1. Not used
for method D2().
Not used.