a vector of integers giving the number of clusters over which the
summary is to take place (must be a subset of the column names of
object). The default is to summarize over all numbers of clusters
used in the original analysis.
modelid
a vector of character strings denoting the models over which the
summary is to take place (must be a subset of the row names of
object).
...
Further (standard) arguments to the print function.
Value
A list giving the optimal (according to BIC) parameter and z values,
together with the associated classification and its uncertainty.