| //+------------------------------------------------------------------+
|
| //| AD.mq5 |
|
| //| Copyright 2000-2025, MetaQuotes Ltd. |
|
| //| https://www.mql5.com |
|
| //+------------------------------------------------------------------+
|
| #property copyright "Copyright 2000-2025, MetaQuotes Ltd."
|
| #property link "https://www.mql5.com"
|
| #property description "Accumulation/Distribution"
|
|
|
| #property indicator_separate_window
|
| #property indicator_buffers 1
|
| #property indicator_plots 1
|
| #property indicator_type1 DRAW_LINE
|
| #property indicator_color1 clrLightSeaGreen
|
| #property indicator_label1 "A/D"
|
| //--- input params
|
| input ENUM_APPLIED_VOLUME InpVolumeType=VOLUME_TICK; // Volume type
|
| //--- indicator buffer
|
| double ExtADbuffer[];
|
| //+------------------------------------------------------------------+
|
| //| Custom indicator initialization function |
|
| //+------------------------------------------------------------------+
|
| void OnInit()
|
| {
|
| //--- indicator digits
|
| IndicatorSetInteger(INDICATOR_DIGITS,0);
|
| //--- indicator short name
|
| IndicatorSetString(INDICATOR_SHORTNAME,"A/D");
|
| //--- index buffer
|
| SetIndexBuffer(0,ExtADbuffer);
|
| //--- set index draw begin
|
| PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,1);
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Accumulation/Distribution |
|
| //+------------------------------------------------------------------+
|
| int OnCalculate(const int rates_total,
|
| const int prev_calculated,
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| const datetime &time[],
|
| const double &open[],
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| const double &high[],
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| const double &low[],
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| const double &close[],
|
| const long &tick_volume[],
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| const long &volume[],
|
| const int &spread[])
|
| {
|
| //--- check for bars count
|
| if(rates_total<2)
|
| return(0); //exit with zero result
|
| //--- get current position
|
| int pos=prev_calculated-1;
|
| if(pos<0)
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| pos=0;
|
| //--- calculate with appropriate volumes
|
| if(InpVolumeType==VOLUME_TICK)
|
| Calculate(rates_total,pos,high,low,close,tick_volume);
|
| else
|
| Calculate(rates_total,pos,high,low,close,volume);
|
| //---
|
| return(rates_total);
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Calculating with selected volume |
|
| //+------------------------------------------------------------------+
|
| void Calculate(const int rates_total,const int pos,
|
| const double &high[],
|
| const double &low[],
|
| const double &close[],
|
| const long &volume[])
|
| {
|
| //--- main cycle
|
| for(int i=pos; i<rates_total && !IsStopped(); i++)
|
| {
|
| //--- get some data from arrays
|
| double hi=high[i];
|
| double lo=low[i];
|
| double cl=close[i];
|
| //--- calculate new AD
|
| double sum=(cl-lo)-(hi-cl);
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| if(hi==lo)
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| sum=0.0;
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| else
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| sum=(sum/(hi-lo))*volume[i];
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| if(i>0)
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| sum+=ExtADbuffer[i-1];
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| ExtADbuffer[i]=sum;
|
| }
|
| }
|
| //+------------------------------------------------------------------+
|
