| //+------------------------------------------------------------------+
|
| //| MarketFacilitationIndex.mq5 |
|
| //| Copyright 2000-2025, MetaQuotes Ltd. |
|
| //| https://www.mql5.com |
|
| //+------------------------------------------------------------------+
|
| #property copyright "Copyright 2000-2025, MetaQuotes Ltd."
|
| #property link "https://www.mql5.com"
|
| //--- indicator settings
|
| #property indicator_separate_window
|
| #property indicator_buffers 2
|
| #property indicator_plots 1
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| #property indicator_type1 DRAW_COLOR_HISTOGRAM
|
| #property indicator_color1 clrLime,clrSaddleBrown,clrBlue,clrPink
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| #property indicator_width1 2
|
| //--- input parameter
|
| input ENUM_APPLIED_VOLUME InpVolumeType=VOLUME_TICK; // Volumes
|
| //--- indicator buffers
|
| double ExtMFIBuffer[];
|
| double ExtColorBuffer[];
|
| //+------------------------------------------------------------------+
|
| //| Custom indicator initialization function |
|
| //+------------------------------------------------------------------+
|
| void OnInit()
|
| {
|
| //--- indicator buffers mapping
|
| SetIndexBuffer(0,ExtMFIBuffer,INDICATOR_DATA);
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| SetIndexBuffer(1,ExtColorBuffer,INDICATOR_COLOR_INDEX);
|
| //--- name for DataWindow
|
| IndicatorSetString(INDICATOR_SHORTNAME,"BWMFI");
|
| //--- set accuracy
|
| IndicatorSetInteger(INDICATOR_DIGITS,_Digits);
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Custom indicator iteration function |
|
| //+------------------------------------------------------------------+
|
| 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[],
|
| const int &spread[])
|
| {
|
| int start=0;
|
| //---
|
| if(start<prev_calculated)
|
| start=prev_calculated-1;
|
| //--- calculate with tick or real volumes
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| if(InpVolumeType==VOLUME_TICK)
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| CalculateMFI(start,rates_total,high,low,tick_volume);
|
| else
|
| CalculateMFI(start,rates_total,high,low,volume);
|
| //--- normalize last mfi value
|
| if(rates_total>1)
|
| {
|
| datetime ctm=TimeTradeServer(),lasttm=time[rates_total-1],nexttm=lasttm+datetime(PeriodSeconds());
|
| if(ctm<nexttm && ctm>=lasttm && nexttm!=lasttm)
|
| {
|
| double correction_koef=double(1+ctm-lasttm)/double(nexttm-lasttm);
|
| ExtMFIBuffer[rates_total-1]*=correction_koef;
|
| }
|
| }
|
| //---
|
| return(rates_total);
|
| }
|
| //+------------------------------------------------------------------+
|
| //| |
|
| //+------------------------------------------------------------------+
|
| void CalculateMFI(const int start,const int rates_total,
|
| const double &high[],
|
| const double &low[],
|
| const long &volume[])
|
| {
|
| int i=start;
|
| bool mfi_up=true,vol_up=true;
|
| //--- calculate first values of mfi_up and vol_up
|
| if(i>0)
|
| {
|
| int n=i;
|
| while(n>0)
|
| {
|
| if(ExtMFIBuffer[n]>ExtMFIBuffer[n-1])
|
| {
|
| mfi_up=true;
|
| break;
|
| }
|
| if(ExtMFIBuffer[n]<ExtMFIBuffer[n-1])
|
| {
|
| mfi_up=false;
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| break;
|
| }
|
| //--- if mfi values are equal continue
|
| n--;
|
| }
|
| n=i;
|
| while(n>0)
|
| {
|
| if(volume[n]>volume[n-1])
|
| {
|
| vol_up=true;
|
| break;
|
| }
|
| if(volume[n]<volume[n-1])
|
| {
|
| vol_up=false;
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| break;
|
| }
|
| //--- if volumes are equal continue
|
| n--;
|
| }
|
| }
|
| //---
|
| while(i<rates_total && !IsStopped())
|
| {
|
| if(volume[i]==0)
|
| {
|
| if(i>0)
|
| ExtMFIBuffer[i]=ExtMFIBuffer[i-1];
|
| else
|
| ExtMFIBuffer[i]=0;
|
| }
|
| else
|
| ExtMFIBuffer[i]=(high[i]-low[i])/_Point/volume[i];
|
| //--- calculate changes
|
| if(i>0)
|
| {
|
| if(ExtMFIBuffer[i]>ExtMFIBuffer[i-1])
|
| mfi_up=true;
|
| if(ExtMFIBuffer[i]<ExtMFIBuffer[i-1])
|
| mfi_up=false;
|
| if(volume[i]>volume[i-1])
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| vol_up=true;
|
| if(volume[i]<volume[i-1])
|
| vol_up=false;
|
| }
|
| //--- set colors
|
| if(mfi_up && vol_up)
|
| ExtColorBuffer[i]=0.0;
|
| if(!mfi_up && !vol_up)
|
| ExtColorBuffer[i]=1.0;
|
| if(mfi_up && !vol_up)
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| ExtColorBuffer[i]=2.0;
|
| if(!mfi_up && vol_up)
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| ExtColorBuffer[i]=3.0;
|
| i++;
|
| }
|
| }
|
| //+------------------------------------------------------------------+
|
