Extract sum of log-Likelihood contributions of all terminal nodes. By default the degrees of freedom from the models are used but optionally degrees of freedom for splits can be incorporated.
# S3 method for pmtree logLik(object, dfsplit = 0, newdata = NULL, weights = NULL, perm = NULL, ...)
degrees of freedom per selected split.
an optional new data frame for which to compute the sum of objective functions.
the number of permutations performed (see
Returns an object of class