computeCore: COMPUTE CORE
In RoughSetKnowledgeReduction: Simplification of Decision Tables using Rough Sets

Description Usage Arguments Value Author(s) References See Also Examples

It computes the core conditions of a Decision Table object using a Discernibility Matrix object.

1	computeCore(object)

object

A Discernibility Matrix object

It returns a numeric vector indicating the columns ids which are the core of the Decision Table object from which the Discernibility Matrix object was created.

Alber Sanchez alber.sanchez@uni-muenster.de

Pawlak, Zdzislaw 1991 Rough Sets: Theoretical Aspects of Reasoning About Data Dordrecht: Kluwer Academic Publishing.

DiscernibilityMatrix-class,computeDiscernibilityMatrix,findFirstConditionReduct,findSmallestReductFamilyFromCore,findAllReductsFromCore

exampleMatrix2 <- matrix(c(1,1,0,1,1,2,2,0,0,0,1,1,1,2,0,
0,0,0,0,0,2,1,0,0,1,2,2,2,1,1,0,0,2,2,2),ncol = 5)
disMatDT <- new(Class="DecisionTable",decisionTable = exampleMatrix2)
dm <- computeDiscernibilityMatrix(disMatDT)
core <- computeCore(dm)