Indicatore MetaTrader 


//+------------------------------------------------------------------+ //| 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 Blue #property indicator_color2 Green #property indicator_color3 Red //---- 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); } //+------------------------------------------------------------------+