Parameters ref, showVars and showClst are
optional.
ref
A numeric vector with expert/reference labeling for visual validation of
the clustering.
A second binClst_instance to be compared with the former.
showVars
When the number of variables is greater than two, a length 3
numeric vector indicating one splitting variable and two variables to be
scattered (given in that order).
showClst
When the number of variables is greater than two, a numeric
vector (of variable length) indicating a subset of the clusters that will
be shown in the scatter plot. This is useful in case of overlapping
clusters.
bg
A valid colour to be used as background colour for multivariate scatterplots. By default a light-grey colour is used to enhance data points visibility.