It creates several work files, with a default name prefix equal to the data filename.
This file has as many lines as there are rules in the system, plus 2.
This file has as many lines as there are items in the data sample.
For each line, the item number (starting from 1), followed by the rule numbers that are activated by it.
The notion of link between rules is useful to appreciate the consistency of a rule base. If two rules are strongly linked, and have different conclusions, then the inconsistency can come from an insufficiently specific input range rule coverage. This situation can also correspond to an exception in the data sample. The linkage level of the rule with the rule is calculated as follows:
is the cardinal of the subset of the items that activate the rule, is the cardinal of .
This file is formatted as a square matrix, whose size is equal to the number of rules. The cell gives the corresponding linkage level. Note : the matrix is not symmetric.
if the sort option is selected, rules are sorted by cumulated weight (which represents their influence in the data sample).
Note: links do not depend on the FIS outputs.