CCompositeMembershipFunction

实施归属函数组合的类。

描述

归属函数组合是使用特定操作符的两种或以上归属函数的组合。

fuzzy_composite_function

绘制图表的示例代码显示如下。

声明

class CCompositeMembershipFuncion : public IMembershipFunction

主题

#include <Math\Fuzzy\membershipfunction.mqh>

继承体系

CObject

IMembershipFunction

CCompositeMembershipFunction

类方法

类方法	描述
CompositionType	设置组合操作符。
MembershipFunctions	获取归属函数列表。
GetValue	通过指定自变数计算归属函数值。

方法继承自类 CObject

: Prev, Prev, Next, Next, Save, Load, Type, Compare

示例

//+------------------------------------------------------------------+
//|                                  CompositeMembershipFunction.mq5 |
//|                        Copyright 2016, MetaQuotes Software Corp. |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#include <Math\Fuzzy\membershipfunction.mqh>
#include <Graphics\Graphic.mqh>
//--- 创建归属函数
CProductTwoSigmoidalMembershipFunctions func1(2,1,-1,7);
CP_ShapedMembershipFunction func2(0,6,7,9);
CCompositeMembershipFunction composite(ProdMF,GetPointer(func1),GetPointer(func2));
//--- 创建归属函数包装程序
double ProductTwoSigmoidalMembershipFunctions(double x) { return(func1.GetValue(x)); }
double P_ShapedMembershipFunction(double x) { return(func2.GetValue(x)); }
double CompositeMembershipFunction(double x) { return(composite.GetValue(x)); }
//+------------------------------------------------------------------+
//| 脚本程序起始函数                                                   |
//+------------------------------------------------------------------+
void OnStart()
  {
//--- 创建图形
   CGraphic graphic;
   if(!graphic.Create(0,"CompositeMembershipFunction",0,30,30,780,380))
     {
      graphic.Attach(0,"CompositeMembershipFunction");
     }
   graphic.HistoryNameWidth(70);
   graphic.BackgroundMain("CompositeMembershipFunction");
   graphic.BackgroundMainSize(16);
//--- 创建曲线
   graphic.CurveAdd(P_ShapedMembershipFunction,0.0,10.0,0.1,CURVE_LINES,"Func1");
   graphic.CurveAdd(ProductTwoSigmoidalMembershipFunctions,0.0,10.0,0.1,CURVE_LINES,"Func2");
   graphic.CurveAdd(CompositeMembershipFunction,0.0,10.0,0.1,CURVE_LINES,"Func1 * Func2");
//--- 设置X轴属性
   graphic.XAxis().AutoScale(false);
   graphic.XAxis().Min(0.0);
   graphic.XAxis().Max(10.0);
   graphic.XAxis().DefaultStep(1.0);
//--- 设置Y轴属性
   graphic.YAxis().AutoScale(false);
   graphic.YAxis().Min(0.0);
   graphic.YAxis().Max(1.1);
   graphic.YAxis().DefaultStep(0.2);
//--- 绘图
   graphic.CurvePlotAll();
   graphic.Update();
  }