90 lines
6.8 KiB
Plaintext
90 lines
6.8 KiB
Plaintext
//+------------------------------------------------------------------+
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//| Delta.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 "Delta indicator"
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#property indicator_separate_window
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#property indicator_buffers 2
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#property indicator_plots 2
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//--- plot Price
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#property indicator_label1 "Price"
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#property indicator_type1 DRAW_LINE
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#property indicator_color1 clrRed
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#property indicator_style1 STYLE_SOLID
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#property indicator_width1 1
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//--- plot Delta
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#property indicator_label2 "Delta"
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#property indicator_type2 DRAW_LINE
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#property indicator_color2 clrGreen
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#property indicator_style2 STYLE_SOLID
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#property indicator_width2 1
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//--- indicator buffers
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double BufferPrice[];
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double BufferDelta[];
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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,BufferPrice,INDICATOR_DATA);
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SetIndexBuffer(1,BufferDelta,INDICATOR_DATA);
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//--- setting indicator parameters
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IndicatorSetString(INDICATOR_SHORTNAME,"Delta");
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IndicatorSetInteger(INDICATOR_DIGITS,Digits());
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//--- setting plot buffer parameters
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PlotIndexSetDouble(0,PLOT_EMPTY_VALUE,0);
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PlotIndexSetDouble(1,PLOT_EMPTY_VALUE,0);
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//--- setting buffer arrays as timeseries
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ArraySetAsSeries(BufferPrice,true);
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ArraySetAsSeries(BufferDelta,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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//--- Установка массивов буферов как таймсерий
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ArraySetAsSeries(open,true);
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ArraySetAsSeries(high,true);
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ArraySetAsSeries(low,true);
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ArraySetAsSeries(close,true);
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//--- Проверка и расчёт количества просчитываемых баров
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if(rates_total<4) return 0;
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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(BufferPrice,0);
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ArrayInitialize(BufferDelta,0);
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}
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//--- Расчёт индикатора
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for(int i=limit; i>=0 && !IsStopped(); i--)
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{
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BufferPrice[i]=(open[i]+high[i]+low[i]+close[i])/4.0;
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if(BufferPrice[i]>0 && BufferPrice[i+1]>0)
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BufferDelta[i]=BufferPrice[i]+log10(BufferPrice[i+1]/BufferPrice[i]);
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}
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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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