65 lines
5.1 KiB
MQL5
65 lines
5.1 KiB
MQL5
//+------------------------------------------------------------------+
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//| EMAonPriceCloseRAW.mq5 |
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//| Copyright 2024, MetaQuotes Ltd. |
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//| https://www.mql5.com |
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//+------------------------------------------------------------------+
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#property copyright "Copyright 2024, MetaQuotes Ltd."
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#property link "https://www.mql5.com"
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#property version "1.00"
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#property indicator_chart_window
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#property indicator_buffers 1
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#property indicator_plots 1
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//--- plot MA
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#property indicator_label1 "EMA"
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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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//--- input parameters
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input int InpPeriod = 10; // EMA Period
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//--- indicator buffers
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double MABuffer[];
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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,MABuffer,INDICATOR_DATA);
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//--- успешная инициализация
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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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//--- в цикле от нуля (начало истории) до текущего бара
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for(int i=0; i<rates_total; i++)
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{
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double result=0;
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double smf=2.0/(InpPeriod+1.0); // фактор сглаживания
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double prev_value=(i>=1 ? MABuffer[i-1] : close[i]); // предыдущее рассчитанное значение EMA
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//--- рассчитываем EMA на основании цены Close бара, прошлого значения EMA и фактора сглаживания
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result=close[i]*smf+prev_value*(1-smf);
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//--- Записываем результат расчёта в буфер
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MABuffer[i]=result;
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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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