//+------------------------------------------------------------------+ //| ComparePrices.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 "Compare Prices indicator" #property indicator_chart_window #property indicator_buffers 2 #property indicator_plots 2 //--- plot MainPrice #property indicator_label1 "Main Price" #property indicator_type1 DRAW_LINE #property indicator_color1 clrGreen #property indicator_style1 STYLE_SOLID #property indicator_width1 1 //--- plot LogPrice #property indicator_label2 "Log10 Price" #property indicator_type2 DRAW_LINE #property indicator_color2 clrRed #property indicator_style2 STYLE_SOLID #property indicator_width2 1 //--- input parameters input uint InpShift = 1; // Prices shift //--- indicator buffers double BufferMainPrice[]; double BufferLogPrice[]; //--- global variables int shift; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- set global variables shift=int(InpShift<1 ? 1 : InpShift); //--- indicator buffers mapping SetIndexBuffer(0,BufferMainPrice,INDICATOR_DATA); SetIndexBuffer(1,BufferLogPrice,INDICATOR_DATA); //--- setting indicator parameters IndicatorSetString(INDICATOR_SHORTNAME,"ComparePrices ("+(string)shift+")"); IndicatorSetInteger(INDICATOR_DIGITS,Digits()); //--- setting buffer arrays as timeseries ArraySetAsSeries(BufferMainPrice,true); ArraySetAsSeries(BufferLogPrice,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(close,true); //--- Проверка и расчёт количества просчитываемых баров if(rates_total1) { limit=rates_total-shift-1; ArrayInitialize(BufferMainPrice,EMPTY_VALUE); ArrayInitialize(BufferLogPrice,EMPTY_VALUE); } //--- Расчёт индикатора for(int i=limit; i>=0 && !IsStopped(); i--) { BufferMainPrice[i]=close[i]; BufferLogPrice[i]=(close[i]!=0 ? close[i]/(1.0+log10(close[i+shift]/close[i])) : 0); } //--- return value of prev_calculated for next call return(rates_total); } //+------------------------------------------------------------------+