Select the most stable configurations of parameters

This function selects the most stable configuration of parameters using the overall ECC value. Firstly, it ranks the configurations based on the median and keep the upper half. Then it applies a second ranking based on the IQR and selects the configuration with the lowest IQR. The user can defined other functions, as long as they have the same monotonicity as the two functions mentioned above.

Usage

select_best_configuration(
  grouped_by_k_list,
  sep_char = ";",
  first_ranking_function = stats::median,
  second_ranking_function = function(x) {
     stats::quantile(x, 0.75) -
    stats::quantile(x, 0.25)
 }
)

Arguments

grouped_by_k_list

A nested list of configurations, where the last level contains the list of partitions grouped by the number of clusters.

sep_char

A character used to separate the configuration names.

first_ranking_function

A function used to rank the configurations and eliminate the lower half. The default is the median.

second_ranking_function

A function used to rank the configurations and select the most stable one. The default is the IQR.

Value

A list of the parameters associated with the most stable configuration.