| //+------------------------------------------------------------------+
|
| //| Bears.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 "Bears Power"
|
| //--- indicator settings
|
| #property indicator_separate_window
|
| #property indicator_buffers 2
|
| #property indicator_plots 1
|
| #property indicator_type1 DRAW_HISTOGRAM
|
| #property indicator_color1 clrSilver
|
| #property indicator_width1 2
|
| //--- input parameters
|
| input int InpBearsPeriod=13; // Period
|
| //--- indicator buffers
|
| double ExtBearsBuffer[];
|
| double ExtTempBuffer[];
|
| //--- handle of EMA
|
| int ExtEmaHandle;
|
| //+------------------------------------------------------------------+
|
| //| Custom indicator initialization function |
|
| //+------------------------------------------------------------------+
|
| void OnInit()
|
| {
|
| //--- indicator buffers mapping
|
| SetIndexBuffer(0,ExtBearsBuffer,INDICATOR_DATA);
|
| SetIndexBuffer(1,ExtTempBuffer,INDICATOR_CALCULATIONS);
|
| //---
|
| IndicatorSetInteger(INDICATOR_DIGITS,_Digits+1);
|
| //--- sets first bar from what index will be drawn
|
| PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,InpBearsPeriod-1);
|
| //--- name for DataWindow and indicator subwindow label
|
| string short_name=StringFormat("Bears(%d)",InpBearsPeriod);
|
| IndicatorSetString(INDICATOR_SHORTNAME,short_name);
|
| //--- get MA handle
|
| ExtEmaHandle=iMA(_Symbol,_Period,InpBearsPeriod,0,MODE_EMA,PRICE_CLOSE);
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Average True Range |
|
| //+------------------------------------------------------------------+
|
| int OnCalculate(const int rates_total,
|
| const int prev_calculated,
|
| const datetime &time[],
|
| const double &open[],
|
| const double &high[],
|
| const double &low[],
|
| const double &close[],
|
| const long &tick_volume[],
|
| const long &volume[],
|
| const int &spread[])
|
| {
|
| if(rates_total<InpBearsPeriod)
|
| return(0);
|
| //--- not all data may be calculated
|
| int calculated=BarsCalculated(ExtEmaHandle);
|
| if(calculated<rates_total)
|
| {
|
| Print("Not all data of ExtEmaHandle is calculated (",calculated," bars). Error ",GetLastError());
|
| return(0);
|
| }
|
| //--- we can copy not all data
|
| int to_copy;
|
| if(prev_calculated>rates_total || prev_calculated<0)
|
| to_copy=rates_total;
|
| else
|
| {
|
| to_copy=rates_total-prev_calculated;
|
| if(prev_calculated>0)
|
| to_copy++;
|
| }
|
| //--- get ma buffers
|
| if(IsStopped()) // checking for stop flag
|
| return(0);
|
| if(CopyBuffer(ExtEmaHandle,0,0,to_copy,ExtTempBuffer)<=0)
|
| {
|
| Print("getting ExtEmaHandle is failed! Error ",GetLastError());
|
| return(0);
|
| }
|
| //--- first calculation or number of bars was changed
|
| int start;
|
| if(prev_calculated<InpBearsPeriod)
|
| start=InpBearsPeriod;
|
| else
|
| start=prev_calculated-1;
|
| //--- the main loop of calculations
|
| for(int i=start; i<rates_total && !IsStopped(); i++)
|
| ExtBearsBuffer[i]=low[i]-ExtTempBuffer[i];
|
| //--- return value of prev_calculated for next call
|
| return(rates_total);
|
| }
|
| //+------------------------------------------------------------------+
|
