122 lines
4.6 KiB
MQL5
122 lines
4.6 KiB
MQL5
 | //+------------------------------------------------------------------+
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//| MI.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 "Mass Index"
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#include <MovingAverages.mqh>
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//--- indicator settings
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#property indicator_separate_window
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#property indicator_buffers 4
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#property indicator_plots 1
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#property indicator_type1 DRAW_LINE
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#property indicator_color1 clrDodgerBlue
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#property indicator_level1 27
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#property indicator_level2 26.5
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#property indicator_levelcolor clrDarkGray
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//--- input parametrs
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input int InpPeriodEMA=9; // First EMA period
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input int InpSecondPeriodEMA=9; // Second EMA period
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input int InpSumPeriod=25; // Mass period
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//--- indicator buffers
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double ExtHLBuffer[];
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double ExtEHLBuffer[];
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double ExtEEHLBuffer[];
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double ExtMIBuffer[];
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int ExtPeriodEMA;
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int ExtSecondPeriodEMA;
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int ExtSumPeriod;
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//+------------------------------------------------------------------+
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//| MI initialization function |
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//+------------------------------------------------------------------+
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void OnInit()
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{
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//--- check input variables
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if(InpPeriodEMA<=0)
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{
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ExtPeriodEMA=9;
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PrintFormat("Incorrect value for input variable InpPeriodEMA=%d. Indicator will use value=%d for calculations.",
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InpPeriodEMA,ExtPeriodEMA);
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}
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else
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ExtPeriodEMA=InpPeriodEMA;
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if(InpSecondPeriodEMA<=0)
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{
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ExtSecondPeriodEMA=9;
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PrintFormat("Incorrect value for input variable InpSecondPeriodEMA=%d. Indicator will use value=%d for calculations.",
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InpSecondPeriodEMA,ExtSecondPeriodEMA);
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}
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else
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ExtSecondPeriodEMA=InpSecondPeriodEMA;
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if(InpSumPeriod<=0)
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{
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ExtSumPeriod=25;
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PrintFormat("Incorrect value for input variable PeriodSum=%d. Indicator will use value=%d for calculations.",
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InpSumPeriod,ExtSumPeriod);
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}
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else
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ExtSumPeriod=InpSumPeriod;
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//--- define buffers
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SetIndexBuffer(0,ExtMIBuffer);
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SetIndexBuffer(1,ExtEHLBuffer,INDICATOR_CALCULATIONS);
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SetIndexBuffer(2,ExtEEHLBuffer,INDICATOR_CALCULATIONS);
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SetIndexBuffer(3,ExtHLBuffer,INDICATOR_CALCULATIONS);
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//--- number of digits of indicator value
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IndicatorSetInteger(INDICATOR_DIGITS,2);
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//--- name for DataWindow and indicator subwindow label
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IndicatorSetString(INDICATOR_SHORTNAME,"Mass Index("+string(ExtPeriodEMA)+","+string(ExtSecondPeriodEMA)+","+string(ExtSumPeriod)+")");
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PlotIndexSetString(0,PLOT_LABEL,"MI("+string(ExtPeriodEMA)+","+string(ExtSecondPeriodEMA)+","+string(ExtSumPeriod)+")");
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//--- indexes draw begin settings
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PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,ExtPeriodEMA+ExtSecondPeriodEMA+ExtSumPeriod-3);
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}
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//+------------------------------------------------------------------+
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//| Mass Index |
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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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int pos_mi=ExtSumPeriod+ExtPeriodEMA+ExtSecondPeriodEMA-3;
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if(rates_total<pos_mi)
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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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//--- correct position
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if(pos<1)
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{
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ExtHLBuffer[0]=high[0]-low[0];
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pos=1;
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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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//--- fill main data buffer
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ExtHLBuffer[i]=high[i]-low[i];
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//--- calculate EMA values
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ExtEHLBuffer[i]=ExponentialMA(i,ExtPeriodEMA,ExtEHLBuffer[i-1],ExtHLBuffer);
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//--- calculate EMA on EMA values
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ExtEEHLBuffer[i]=ExponentialMA(i,ExtSecondPeriodEMA,ExtEEHLBuffer[i-1],ExtEHLBuffer);
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//--- calculate MI values
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double dtmp=0.0;
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if(i>=pos_mi)
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{
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for(int j=0; j<ExtSumPeriod; j++)
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if(ExtEEHLBuffer[i-j]!=0.0)
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dtmp+=ExtEHLBuffer[i-j]/ExtEEHLBuffer[i-j];
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}
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ExtMIBuffer[i]=dtmp;
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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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