| //+------------------------------------------------------------------+
|
| //| MI.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 "Mass Index"
|
| #include <MovingAverages.mqh>
|
| //--- indicator settings
|
| #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
|
| //--- input parametrs
|
| input int InpPeriodEMA=9; // First EMA period
|
| input int InpSecondPeriodEMA=9; // Second EMA period
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| input int InpSumPeriod=25; // Mass period
|
| //--- 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[];
|
|
|
| int ExtPeriodEMA;
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| int ExtSecondPeriodEMA;
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| int ExtSumPeriod;
|
| //+------------------------------------------------------------------+
|
| //| MI initialization function |
|
| //+------------------------------------------------------------------+
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| void OnInit()
|
| {
|
| //--- check input variables
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| if(InpPeriodEMA<=0)
|
| {
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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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| }
|
| else
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| ExtPeriodEMA=InpPeriodEMA;
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| if(InpSecondPeriodEMA<=0)
|
| {
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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);
|
| }
|
| else
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| ExtSecondPeriodEMA=InpSecondPeriodEMA;
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| if(InpSumPeriod<=0)
|
| {
|
| 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);
|
| }
|
| else
|
| ExtSumPeriod=InpSumPeriod;
|
| //--- define buffers
|
| 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);
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Mass Index |
|
| //+------------------------------------------------------------------+
|
| int OnCalculate(const int rates_total,
|
| const int prev_calculated,
|
| 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[])
|
| {
|
| int pos_mi=ExtSumPeriod+ExtPeriodEMA+ExtSecondPeriodEMA-3;
|
| if(rates_total<pos_mi)
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| return(0);
|
| //--- start working
|
| int pos=prev_calculated-1;
|
| //--- correct position
|
| if(pos<1)
|
| {
|
| ExtHLBuffer[0]=high[0]-low[0];
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| pos=1;
|
| }
|
| //--- main cycle
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| for(int i=pos; i<rates_total && !IsStopped(); i++)
|
| {
|
| //--- fill main data buffer
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| ExtHLBuffer[i]=high[i]-low[i];
|
| //--- calculate EMA values
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| ExtEHLBuffer[i]=ExponentialMA(i,ExtPeriodEMA,ExtEHLBuffer[i-1],ExtHLBuffer);
|
| //--- calculate EMA on EMA values
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| ExtEEHLBuffer[i]=ExponentialMA(i,ExtSecondPeriodEMA,ExtEEHLBuffer[i-1],ExtEHLBuffer);
|
| //--- calculate MI values
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| double dtmp=0.0;
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| if(i>=pos_mi)
|
| {
|
| 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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| ExtMIBuffer[i]=dtmp;
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| }
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| //--- OnCalculate done. Return new prev_calculated.
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| return(rates_total);
|
| }
|
| //+------------------------------------------------------------------+
|
