//+------------------------------------------------------------------+ //| PVT.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 "Price volume trend oscillator" #property indicator_separate_window #property indicator_buffers 1 #property indicator_plots 1 //--- plot PVT #property indicator_label1 "PVT" #property indicator_type1 DRAW_LINE #property indicator_color1 clrCrimson #property indicator_style1 STYLE_SOLID #property indicator_width1 1 //--- indicator buffers double BufferPVT[]; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- indicator buffers mapping SetIndexBuffer(0,BufferPVT,INDICATOR_DATA); //--- settings indicators parameters IndicatorSetInteger(INDICATOR_DIGITS,Digits()); IndicatorSetString(INDICATOR_SHORTNAME,"Price volume trend"); //--- setting buffer arrays as timeseries ArraySetAsSeries(BufferPVT,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[]) { //--- Проверка на минимальное количество баров для расчёта if(rates_total<4) return 0; //--- Установка массивов буферов как таймсерий ArraySetAsSeries(close,true); ArraySetAsSeries(tick_volume,true); //--- Проверка и расчёт количества просчитываемых баров int limit=rates_total-prev_calculated; if(limit>1) { limit=rates_total-2; ArrayInitialize(BufferPVT,0); } //--- Расчёт индикатора int index=WRONG_VALUE; for(int i=limit; i>=0; i--) BufferPVT[i]=(close[i]-close[i+1])*tick_volume[i]/close[i+1]+BufferPVT[i+1]; //--- return value of prev_calculated for next call return(rates_total); } //+------------------------------------------------------------------+