//+------------------------------------------------------------------+ //| EWO.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 "Elliot Wave Oscillator" #property indicator_separate_window #property indicator_buffers 4 #property indicator_plots 1 //--- plot EWO #property indicator_label1 "EWO" #property indicator_type1 DRAW_COLOR_HISTOGRAM #property indicator_color1 clrLightGreen,clrGreen,clrOrange,clrFireBrick,clrDarkGray #property indicator_style1 STYLE_SOLID #property indicator_width1 2 //--- input parameters input uint InpPeriodFast = 5; // Fast MA period input uint InpPeriodSlow = 35; // Slow MA period input ENUM_MA_METHOD InpMethod = MODE_SMA; // Method input ENUM_APPLIED_PRICE InpAppliedPrice = PRICE_CLOSE; // Applied price //--- indicator buffers double BufferEWO[]; double BufferColors[]; double BufferFMA[]; double BufferSMA[]; //--- global variables int period_fast; int period_slow; int handle_fma; int handle_sma; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- set global variables period_fast=int(InpPeriodFast<1 ? 1 : InpPeriodFast); period_slow=int(InpPeriodSlow==period_fast ? period_fast+1 : InpPeriodSlow<1 ? 1 : InpPeriodSlow); //--- indicator buffers mapping SetIndexBuffer(0,BufferEWO,INDICATOR_DATA); SetIndexBuffer(1,BufferColors,INDICATOR_COLOR_INDEX); SetIndexBuffer(2,BufferFMA,INDICATOR_CALCULATIONS); SetIndexBuffer(3,BufferSMA,INDICATOR_CALCULATIONS); //--- setting indicator parameters IndicatorSetString(INDICATOR_SHORTNAME,"EWOsc ("+(string)period_fast+","+(string)period_slow+")"); IndicatorSetInteger(INDICATOR_DIGITS,Digits()); //--- setting buffer arrays as timeseries ArraySetAsSeries(BufferEWO,true); ArraySetAsSeries(BufferColors,true); ArraySetAsSeries(BufferFMA,true); ArraySetAsSeries(BufferSMA,true); //--- create MA's handles ResetLastError(); handle_fma=iMA(NULL,PERIOD_CURRENT,period_fast,0,InpMethod,InpAppliedPrice); if(handle_fma==INVALID_HANDLE) { Print("The iMA(",(string)period_fast,") by ",EnumToString(InpAppliedPrice)," object was not created: Error ",GetLastError()); return INIT_FAILED; } handle_sma=iMA(NULL,PERIOD_CURRENT,period_slow,0,InpMethod,InpAppliedPrice); if(handle_sma==INVALID_HANDLE) { Print("The iMA(",(string)period_slow,") by ",EnumToString(InpAppliedPrice)," 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[]) { //--- Проверка и расчёт количества просчитываемых баров if(rates_total<4) return 0; //--- Проверка и расчёт количества просчитываемых баров int limit=rates_total-prev_calculated; if(limit>1) { limit=rates_total-2; ArrayInitialize(BufferEWO,0); ArrayInitialize(BufferColors,4); ArrayInitialize(BufferFMA,0); ArrayInitialize(BufferSMA,0); } //--- Подготовка данных int count=(limit>1 ? rates_total : 1),copied=0; copied=CopyBuffer(handle_fma,0,0,count,BufferFMA); if(copied!=count) return 0; copied=CopyBuffer(handle_sma,0,0,count,BufferSMA); if(copied!=count) return 0; //--- Расчёт индикатора for(int i=limit; i>=0 && !IsStopped(); i--) { BufferEWO[i]=BufferFMA[i]-BufferSMA[i]; BufferColors[i]=(BufferEWO[i]>0 ? (BufferEWO[i]>BufferEWO[i+1] ? 0 : 1) : BufferEWO[i]<0 ? (BufferEWO[i]