//+------------------------------------------------------------------+ //| Volume_Accumulation.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 "Volume Accumulation" #property indicator_separate_window #property indicator_buffers 2 #property indicator_plots 1 //--- plot VA #property indicator_label1 "VA" #property indicator_type1 DRAW_COLOR_HISTOGRAM #property indicator_color1 clrGreen,clrRed #property indicator_style1 STYLE_SOLID #property indicator_width1 2 //--- indicator buffers double BufferVA[]; double BufferColors[]; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- indicator buffers mapping SetIndexBuffer(0,BufferVA,INDICATOR_DATA); SetIndexBuffer(1,BufferColors,INDICATOR_COLOR_INDEX); //--- setting indicator parameters IndicatorSetString(INDICATOR_SHORTNAME,"Volume Accumulation"); IndicatorSetInteger(INDICATOR_DIGITS,Digits()); //--- setting buffer arrays as timeseries ArraySetAsSeries(BufferVA,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[]) { //--- Проверка на минимальное колиество баров для расчёта if(rates_total<4) return 0; //--- Установка массивов буферов как таймсерий ArraySetAsSeries(high,true); ArraySetAsSeries(low,true); 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(BufferVA,EMPTY_VALUE); } //--- Расчёт индикатора for(int i=limit; i>=0 && !IsStopped(); i--) { BufferVA[i]=(high[i]-low[i]!=0 ? tick_volume[i]*(2*close[i]-high[i]-low[i])/(high[i]-low[i]) : 0); BufferColors[i]=(BufferVA[i]