//+------------------------------------------------------------------+ //| Range_Volume_Ratio.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 "Range Volume Ratio oscillator" #property indicator_separate_window #property indicator_buffers 2 #property indicator_plots 1 //--- plot RVR #property indicator_label1 "RV Ratio" #property indicator_type1 DRAW_COLOR_HISTOGRAM #property indicator_color1 clrCadetBlue,clrMediumVioletRed #property indicator_style1 STYLE_SOLID #property indicator_width1 2 //--- enums enum ENUM_TYPE_CALC { TYPE_OC, // Open/Close TYPE_HL // High/Low }; //--- input parameters input ENUM_TYPE_CALC InpType=TYPE_OC; // Calculation type //--- indicator buffers double BufferRVR[]; double BufferColors[]; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- indicator buffers mapping SetIndexBuffer(0,BufferRVR,INDICATOR_DATA); SetIndexBuffer(1,BufferColors,INDICATOR_COLOR_INDEX); //--- setting indicator parameters IndicatorSetString(INDICATOR_SHORTNAME,"Range Volume Ratio"); IndicatorSetInteger(INDICATOR_DIGITS,Digits()); IndicatorSetDouble(INDICATOR_MINIMUM,0); //--- setting buffer arrays as timeseries ArraySetAsSeries(BufferRVR,true); ArraySetAsSeries(BufferColors,true); //--- 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(open,true); ArraySetAsSeries(high,true); ArraySetAsSeries(low,true); ArraySetAsSeries(close,true); ArraySetAsSeries(tick_volume,true); //--- Проверка и расчёт количества просчитываемых баров if(rates_total<4 || Point()==0) return 0; //--- Проверка и расчёт количества просчитываемых баров int limit=rates_total-prev_calculated; if(limit>1) { limit=rates_total-2; ArrayInitialize(BufferRVR,EMPTY_VALUE); } //--- Расчёт индикатора for(int i=limit; i>=0 && !IsStopped(); i--) { BufferRVR[i]=(tick_volume[i]!=0 ? (InpType==TYPE_OC ? fabs(open[i]-close[i]) : (high[i]-low[i])) / (tick_volume[i]*Point()) : 0); BufferColors[i]=(BufferRVR[i]