//+------------------------------------------------------------------+ //| Effort_Result.mq5 | //| Copyright 2018, MetaQuotes Software Corp. | //| https://mql5.com | //+------------------------------------------------------------------+ #property copyright "Copyright 2018, MetaQuotes Software Corp." #property link "https://mql5.com" #property version "1.00" #property description "Effort Result indicator" #property indicator_separate_window #property indicator_buffers 3 #property indicator_plots 1 //--- plot ER #property indicator_label1 "EResult" #property indicator_type1 DRAW_LINE #property indicator_color1 clrRed #property indicator_style1 STYLE_SOLID #property indicator_width1 1 //--- input parameters input uint InpPeriod=14; // Period //--- indicator buffers double BufferER[]; double BufferMA[]; double BufferVol[]; //--- global variables int period; int handle_ma; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- set global variables period=int(InpPeriod<1 ? 1 : InpPeriod); //--- indicator buffers mapping SetIndexBuffer(0,BufferER,INDICATOR_DATA); SetIndexBuffer(1,BufferMA,INDICATOR_CALCULATIONS); SetIndexBuffer(2,BufferVol,INDICATOR_CALCULATIONS); //--- setting indicator parameters IndicatorSetString(INDICATOR_SHORTNAME,"Effort Result ("+(string)period+")"); IndicatorSetInteger(INDICATOR_DIGITS,Digits()); //--- setting buffer arrays as timeseries ArraySetAsSeries(BufferER,true); ArraySetAsSeries(BufferMA,true); ArraySetAsSeries(BufferVol,true); //--- create MA's handles ResetLastError(); handle_ma=iMA(NULL,PERIOD_CURRENT,period,0,MODE_SMA,PRICE_CLOSE); if(handle_ma==INVALID_HANDLE) { Print("The iMA(",(string)period,") object was not created: Error ",GetLastError()); return INIT_FAILED; } //--- return(INIT_SUCCEEDED); } //+------------------------------------------------------------------+ //| Custom indicator iteration function | //+------------------------------------------------------------------+ 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[]) { //--- Установка массивов буферов как таймсерий ArraySetAsSeries(tick_volume,true); //--- Проверка и расчёт количества просчитываемых баров if(rates_total1) { limit=rates_total-period-1; ArrayInitialize(BufferER,EMPTY_VALUE); ArrayInitialize(BufferMA,0); ArrayInitialize(BufferVol,0); } //--- Подготовка данных int count=(limit>1 ? rates_total : 1); int copied=CopyBuffer(handle_ma,0,0,count,BufferMA); if(copied!=count) return 0; for(int i=limit; i>=0 && !IsStopped(); i--) BufferVol[i]=(double)tick_volume[i]; //--- Расчёт индикатора for(int i=limit; i>=0 && !IsStopped(); i--) { double Pr0=BufferMA[i]; double Pr1=BufferMA[i+period]; double roc=(Pr1!=0 ? 100.0*(Pr0/Pr1-1.0) : 0); int bh=ArrayMaximum(BufferVol,i,period); if(bh==WRONG_VALUE) continue; double max=BufferVol[bh]; BufferER[i]=(max!=0 ? roc/(max*Point()*Point()) : 0); } //--- return value of prev_calculated for next call return(rates_total); } //+------------------------------------------------------------------+