rsesstop.cpp

粗慥集成算法集合 ,并有详细的文档资料和测试数据处

//-------------------------------------------------------------------
// Author........: Aleksander 豩rn
// Date..........:
// Description...: Global function used by the RSES library.
// Revisions.....:
//===================================================================

#include <stdafx.h> // Precompiled headers.
#include <copyright.h>

#include <kernel/basic/message.h>

#include <common/configuration.h>

//-------------------------------------------------------------------
// Static methods (file scope).
//===================================================================

//-------------------------------------------------------------------
// Method........: StaticMakesSense
// Author........: Aleksander 豩rn
// Date..........:
// Description...:
// Comments......:
// Revisions.....:
//===================================================================

/*
static bool
StaticMakesSense(int no_reducts) {

	static int no_reducts_previous = 0;

	// Negative number? That's definitely non-sensical.
	if (no_reducts < 0)
		return false;

	// Standstill? That's probably OK.
	if (no_reducts == no_reducts_previous)
		return true;

	// Decreasing? Probably OK, could be a "new cycle".
	if (no_reducts < no_reducts_previous) {
		no_reducts_previous = no_reducts;
		return true;
	}

	// Very large increase? That's probably non-sensical.
	if (no_reducts - no_reducts_previous > 500) {
		no_reducts_previous = 0;
		return false;
	}

	// Better safe than sorry.
	return false;

}
*/

//-------------------------------------------------------------------
// Method........: stop (global)
// Author........: Aleksander 豩rn
// Date..........:
// Description...: Global function used by the RSES library.
// Comments......: Excerpt from the RSES library technical documentation:
//
//                   It has to be written function int stop(int info, ...).
//                   This function is called from most loops of calculating
//                   functions and enables to break calculations. This
//                   function should return 1 if you want to continue
//                   calculations and 0 otherwise. The info parameters describes
//                   which function is calling stop. In the simplest case when
//                   there is no need to have the possibility to stop calculations
//                   the definition of this function may be as follows:
//
//                     int stop(int,...) {
//                       return 1;
//                     }
//
//                   This function may be written to check a special variable
//                   that is changed whenever the operation shall be stopped:
//
//                     Info:                   Description:
//                     REDUCTS                 Calculating reducts number of found reducts (long)
//                     GEN_DECISION            Creating generalized decision
//                     DISCMATRIX              Creating discernibility matrix
//                     REDUCEMATRIX            Reducing disc. matrix
//                     CLEARREDUNDANT          Removing redundant elements
//                     LOAD_TABLE              Loading decision table
//                     APPROXREDUCT            Johnson algorithm
//
// Revisions.....: A