Wrapper class used to generate approximations, rules, preference graphs, and rankings
and write them to *.apx, *.rules, *.graph, and *.ranking files, respectively.
This class has the following limitations:
a) usage of minimal set of rules induced according to VC-DomLEM algorithm or usage of virtual exhaustive set of robust rules,
b) rules are applied to data according to WFNFS or Repeated WFNFS preference graph exploitation procedure,
c) only new VC-DRSA approach is used (because only for this approach rules can be generated),
d) to create PCT only differences of evaluations are used (not degrees of the intensity of preference, because they require more effort from the DM),
e) all weights for WFNFS preference structure exploitation procedure are equal to 1.0 (which requires less effort from the DM),
f) comments may be written to generated *.apx or *.rules files only manually,
g) ranking error is calculated only using Kendall's coefficient.