mt4平台3线kdj指标_三线tⅹt下载

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在MT4上，是没有三线KDJ指标的，分享KDJ指标源码：

#property copyright "Copyright 2020"
#property link "https://www.mql5.com"
#property version "1.00"
#property strict
#property indicator_separate_window
#property indicator_buffers 3
#property indicator_plots 3
//--- plot KLine
#property indicator_label1 "KLine"
#property indicator_type1 DRAW_LINE
#property indicator_color1 clrWhite
#property indicator_style1 STYLE_SOLID
#property indicator_width1 1
//--- plot DLine
#property indicator_label2 "DLine"
#property indicator_type2 DRAW_LINE
#property indicator_color2 clrGold
#property indicator_style2 STYLE_SOLID
#property indicator_width2 1
//--- plot JLine
#property indicator_label3 "JLine"
#property indicator_type3 DRAW_LINE
#property indicator_color3 clrDarkViolet
#property indicator_style3 STYLE_SOLID
#property indicator_width3 1

#property indicator_levelstyle STYLE_DOT
#property indicator_levelcolor clrSilver
#property indicator_level1 0
#property indicator_level2 20
#property indicator_level3 50
#property indicator_level4 80
#property indicator_level5 100


//---- input parameters
input int N =9;//%K 周期
input int M1=3;//%D 周期
input int M2=3;//慢速
//--- indicator buffers
double         KBuffer[];
double         DBuffer[];
double         JBuffer[];
double llv[],hhv[],rsv[];
double p=0,p1=0;
double f=0,f1=0;
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int OnInit()
  { 
   
//--- indicator buffers mapping
   IndicatorBuffers(6);
   SetIndexBuffer(0,KBuffer);
   SetIndexBuffer(1,DBuffer);
   SetIndexBuffer(2,JBuffer);
   SetIndexBuffer(3,llv,INDICATOR_CALCULATIONS);
   SetIndexBuffer(4,hhv,INDICATOR_CALCULATIONS);
   SetIndexBuffer(5,rsv,INDICATOR_CALCULATIONS);

   for(int i=0; i<6; i++)
     { 
   
      SetIndexDrawBegin(i,N+M1+M2);
     }


   SetLevelValue(0,0);
   SetLevelValue(1,20);
   SetLevelValue(2,50);
   SetLevelValue(3,80);
   SetLevelValue(4,100);

   string name = "KDJ("+ (string)N+","+(string)M1+","+(string)M2+")";
   IndicatorShortName(name);

   IndicatorDigits(2);

   if(N<=0||M1<=0||M2<=0)
      return(INIT_FAILED);

   p = 1.0/M1;
   p1 = 1-p;
   f = 1.0/M2;
   f1 = 1-f;



//---
   return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,
                const int prev_calculated,
                const datetime &time[],
                const double &open[],
                const double &high[],
                const double &low[],
                const double &close[],
                const long &tick_volume[],
                const long &volume[],
                const int &spread[])
  { 
   
//---
   int i,limit=0;
   if(rates_total<=0)
      return(0);
   if(prev_calculated<=0)
      limit=rates_total-1;
   else
      limit = rates_total - prev_calculated +1;

   for(i=limit; i>=0; i--)
     { 
   
      llv[i]=0;
      hhv[i]=0;
      if(i>rates_total-N)
         continue;
      int shift = iLowest(NULL,0,MODE_LOW,N,i);
      llv[i] =  low[shift];
      shift = iHighest(NULL,0,MODE_HIGH,N,i);
      hhv[i] = high[shift];
     }
   for(i=limit; i>=0; i--)
     { 
   
      rsv[i] = 0;
      if(hhv[i]>0 && llv[i]>0 && (hhv[i]-llv[i])!=0)
         rsv[i] = (close[i]-llv[i])/(hhv[i]-llv[i])*100;
     }

   for(i=limit; i>=0; i--)
     { 
   
      if(i==rates_total-1)
         KBuffer[i]=0;
      else
        { 
   
         KBuffer[i] = rsv[i]*p + KBuffer[i+1]*p1;
        }
     }

   for(i=limit; i>=0; i--)
     { 
   
      if(i==rates_total-1)
         DBuffer[i]=0;
      else
        { 
   
         DBuffer[i] = KBuffer[i]*f + DBuffer[i+1]*f1;
        }
     }

   for(i=limit; i>=0; i--)
     { 
   
      JBuffer[i] = 3*KBuffer[i] - 2*DBuffer[i];
     }


//--- return value of prev_calculated for next call
   return(rates_total);
  }
//+------------------------------------------------------------------+