stig_from_ig_dist {RAFS}

Symmetric Target Information Gain (STIG) computed from single Information Gains (IGs)

Description

To be used as one of the dist_funs in run_rafs.

Usage

stig_from_ig_dist(relevant_train_data, train_decision, seed)

Arguments

relevant_train_data

input data where columns are variables and rows are observations (all numeric); assumed to contain only relevant data

train_decision

decision variable as a binary sequence of length equal to number of observations

seed

a numerical seed

Details

This function computes the STIG metric from single Information Gains (IGs) maximised over 30 discretisations and then summed pair-wise.

This function is similar to stig_dist but the results differ slightly. We recommend the direct computation in general.

Value

A matrix of distances (dissimilarities).