71 lines
5.6 KiB
Plaintext
71 lines
5.6 KiB
Plaintext
//+------------------------------------------------------------------+
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//| PVT.mq5 |
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//| Copyright 2018, MetaQuotes Software Corp. |
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//| https://mql5.com |
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//+------------------------------------------------------------------+
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#property copyright "Copyright 2018, MetaQuotes Software Corp."
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#property link "https://mql5.com"
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#property version "1.00"
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#property description "Price volume trend oscillator"
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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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//--- plot PVT
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#property indicator_label1 "PVT"
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#property indicator_type1 DRAW_LINE
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#property indicator_color1 clrCrimson
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#property indicator_style1 STYLE_SOLID
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#property indicator_width1 1
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//--- indicator buffers
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double BufferPVT[];
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//+------------------------------------------------------------------+
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//| Custom indicator initialization function |
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//+------------------------------------------------------------------+
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int OnInit()
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{
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//--- indicator buffers mapping
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SetIndexBuffer(0,BufferPVT,INDICATOR_DATA);
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//--- settings indicators parameters
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IndicatorSetInteger(INDICATOR_DIGITS,Digits());
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IndicatorSetString(INDICATOR_SHORTNAME,"Price volume trend");
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//--- setting buffer arrays as timeseries
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ArraySetAsSeries(BufferPVT,true);
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//---
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return(INIT_SUCCEEDED);
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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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//--- Проверка на минимальное количество баров для расчёта
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if(rates_total<4) return 0;
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//--- Установка массивов буферов как таймсерий
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ArraySetAsSeries(close,true);
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ArraySetAsSeries(tick_volume,true);
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//--- Проверка и расчёт количества просчитываемых баров
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int limit=rates_total-prev_calculated;
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if(limit>1)
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{
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limit=rates_total-2;
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ArrayInitialize(BufferPVT,0);
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}
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//--- Расчёт индикатора
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int index=WRONG_VALUE;
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for(int i=limit; i>=0; i--)
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BufferPVT[i]=(close[i]-close[i+1])*tick_volume[i]/close[i+1]+BufferPVT[i+1];
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//--- return value of prev_calculated for next call
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return(rates_total);
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}
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//+------------------------------------------------------------------+
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