96 lines
3.2 KiB
MQL5
96 lines
3.2 KiB
MQL5
 | //+------------------------------------------------------------------+
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//| W_AD.mq5 |
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//| Copyright 2000-2025, MetaQuotes Ltd. |
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//| https://www.mql5.com |
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//+------------------------------------------------------------------+
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#property copyright "Copyright 2000-2025, MetaQuotes Ltd."
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#property link "https://www.mql5.com"
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#property description "Larry Williams' Accumulation/Distribution"
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//--- indicator settings
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#property indicator_separate_window
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#property indicator_buffers 1
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#property indicator_plots 1
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#property indicator_type1 DRAW_LINE
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#property indicator_color1 clrLightSeaGreen
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//--- indicator buffer
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double ExtWADBuffer[];
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//+------------------------------------------------------------------+
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//| Custom indicator initialization function |
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//+------------------------------------------------------------------+
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void OnInit()
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{
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//--- define buffer
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SetIndexBuffer(0,ExtWADBuffer);
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//--- set draw begin
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PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,1);
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//--- indicator name
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IndicatorSetString(INDICATOR_SHORTNAME,"W_A/D");
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//--- round settings
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IndicatorSetInteger(INDICATOR_DIGITS,_Digits);
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}
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//+------------------------------------------------------------------+
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//| Custom indicator iteration function |
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//+------------------------------------------------------------------+
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int OnCalculate(const int rates_total,
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const int prev_calculated,
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const datetime &time[],
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const double &open[],
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const double &high[],
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const double &low[],
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const double &close[],
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const long &tick_volume[],
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const long &volume[],
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const int &spread[])
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{
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//---
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if(rates_total<2)
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return(0);
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//--- start working
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int pos=prev_calculated-1;
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if(pos<1)
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{
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pos=1;
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ExtWADBuffer[0]=0.0;
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}
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//--- main cycle
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for(int i=pos; i<rates_total && !IsStopped(); i++)
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{
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//--- get data
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double hi=high[i];
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double lo=low[i];
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double cl=close[i];
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double prev_cl=close[i-1];
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//--- calculate TRH and TRL
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double trh=MathMax(hi,prev_cl);
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double trl=MathMin(lo,prev_cl);
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//--- calculate WA/D
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if(IsEqualDoubles(cl,prev_cl,_Point))
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ExtWADBuffer[i]=ExtWADBuffer[i-1];
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else
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{
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if(cl>prev_cl)
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ExtWADBuffer[i]=ExtWADBuffer[i-1]+cl-trl;
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else
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ExtWADBuffer[i]=ExtWADBuffer[i-1]+cl-trh;
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}
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}
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//--- OnCalculate done. Return new prev_calculated.
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return(rates_total);
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}
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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bool IsEqualDoubles(double d1,double d2,double epsilon)
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{
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if(epsilon<0.0)
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epsilon=-epsilon;
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if(epsilon>0.1)
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epsilon=0.00001;
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//---
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double diff=d1-d2;
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if(diff>epsilon || diff<-epsilon)
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return(false);
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//---
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return(true);
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}
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//+------------------------------------------------------------------+
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