adx





//+------------------------------------------------------------------+
//|                                                          ADX.mq4 |
//|                      Copyright © 2004, MetaQuotes Software Corp. |
//|                                       http://www.metaquotes.net/ |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2004, MetaQuotes Software Corp."
#property link      "http://www.metaquotes.net/"

#property indicator_separate_window
#property indicator_buffers 3
#property indicator_color1 LightSeaGreen
#property indicator_color2 YellowGreen
#property indicator_color3 Wheat
//---- input parameters
extern int ADXPeriod=14;
//---- buffers
double ADXBuffer[];
double PlusDiBuffer[];
double MinusDiBuffer[];
double PlusSdiBuffer[];
double MinusSdiBuffer[];
double TempBuffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- 3 additional buffers are used for counting.
   IndicatorBuffers(6);
//---- indicator buffers
   SetIndexBuffer(0,ADXBuffer);
   SetIndexBuffer(1,PlusDiBuffer);
   SetIndexBuffer(2,MinusDiBuffer);
   SetIndexBuffer(3,PlusSdiBuffer);
   SetIndexBuffer(4,MinusSdiBuffer);
   SetIndexBuffer(5,TempBuffer);
//---- name for DataWindow and indicator subwindow label
   IndicatorShortName("ADX("+ADXPeriod+")");
   SetIndexLabel(0,"ADX");
   SetIndexLabel(1,"+DI");
   SetIndexLabel(2,"-DI");
//----
   SetIndexDrawBegin(0,ADXPeriod);
   SetIndexDrawBegin(1,ADXPeriod);
   SetIndexDrawBegin(2,ADXPeriod);
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Average Directional Movement Index                               |
//+------------------------------------------------------------------+
int start()
  {
   double pdm,mdm,tr;
   double price_high,price_low;
   int    starti,i,counted_bars=IndicatorCounted();
//----
   i=Bars-2;
   PlusSdiBuffer[i+1]=0;
   MinusSdiBuffer[i+1]=0;
   if(counted_bars>=i) i=Bars-counted_bars-1;
   starti=i;
//----
   while(i>=0)
     {
      price_low=Low[i];
      price_high=High[i];
      //----
      pdm=price_high-High[i+1];
      mdm=Low[i+1]-price_low;
      if(pdm<0) pdm=0;  // +DM
      if(mdm<0) mdm=0;  // -DM
      if(pdm==mdm) { pdm=0; mdm=0; }
      else if(pdm<mdm) pdm=0;
           else if(mdm<pdm) mdm=0;
      //---- âû÷èñëÿåì èñòèííûé èíòåðâàë
      double num1=MathAbs(price_high-price_low);
      double num2=MathAbs(price_high-Close[i+1]);
      double num3=MathAbs(price_low-Close[i+1]);
      tr=MathMax(num1,num2);
      tr=MathMax(tr,num3);
      //---- counting plus/minus direction
      if(tr==0) { PlusSdiBuffer[i]=0; MinusSdiBuffer[i]=0; }
      else      { PlusSdiBuffer[i]=100.0*pdm/tr; MinusSdiBuffer[i]=100.0*mdm/tr; }
      //----
      i--;
     }
//---- last counted bar will be recounted
   if(counted_bars>0) counted_bars--;
   int limit=Bars-counted_bars;
//---- apply EMA to +DI
   for(i=0; i<=limit; i++)
      PlusDiBuffer[i]=iMAOnArray(PlusSdiBuffer,Bars,ADXPeriod,0,MODE_EMA,i);
//---- apply EMA to -DI
   for(i=0; i<=limit; i++)
      MinusDiBuffer[i]=iMAOnArray(MinusSdiBuffer,Bars,ADXPeriod,0,MODE_EMA,i);
//---- Directional Movement (DX)
   i=Bars-2;
   TempBuffer[i+1]=0;
   i=starti;
   while(i>=0)
     {
      double div=MathAbs(PlusDiBuffer[i]+MinusDiBuffer[i]);
      if(div==0.00) TempBuffer[i]=0;
      else TempBuffer[i]=100*(MathAbs(PlusDiBuffer[i]-MinusDiBuffer[i])/div);
      i--;
     }
//---- ADX is exponential moving average on DX
   for(i=0; i<limit; i++)
      ADXBuffer[i]=iMAOnArray(TempBuffer,Bars,ADXPeriod,0,MODE_EMA,i);
//----
   return(0);
  }
//+------------------------------------------------------------------+



Sample





Analysis



Market Information Used:

Series array that contains the lowest prices of each bar
Series array that contains the highest prices of each bar
Series array that contains close prices for each bar


Indicator Curves created:



Indicators Used:

Moving average indicator


Custom Indicators Used:

Order Management characteristics:

Other Features: