cluster_metric_set() allows you to combine multiple metric functions
together into a new function that calculates all of them at once.
Usage
cluster_metric_set(...)
Value
A cluster_metric_set() object, combining the use of all input
metrics.
Arguments
...
The bare names of the functions to be included in the metric set.
These functions must be cluster metrics such as sse_total(),
sse_ratio(), or silhouette_avg().