//+------------------------------------------------------------------+ //| Open Interest.mq5 | //| Copyright © 2016, Vladimir Karputov | //| http://wmua.ru/slesar/ | //+------------------------------------------------------------------+ #property copyright "Copyright © 2016, Vladimir Karputov" #property link "http://wmua.ru/slesar/" #property version "1.001" #property indicator_separate_window #property indicator_buffers 4 #property indicator_plots 2 //--- plot Max #property indicator_label1 "Interest Max" #property indicator_type1 DRAW_HISTOGRAM2 #property indicator_color1 clrBlue #property indicator_style1 STYLE_SOLID #property indicator_width1 3 //--- plot Сurrent #property indicator_label2 "Interest Min" #property indicator_type2 DRAW_HISTOGRAM2 #property indicator_color2 clrRed #property indicator_style2 STYLE_SOLID #property indicator_width2 3 //--- indicator buffers double BufferMaxUp[]; double BufferMaxDown[]; double BufferMinUp[]; double BufferMinDown[]; //--- datetime StartDate=0; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int OnInit() { Print(__FUNCTION__); //--- indicator buffers mapping SetIndexBuffer(0,BufferMaxUp,INDICATOR_DATA); SetIndexBuffer(1,BufferMaxDown,INDICATOR_DATA); SetIndexBuffer(2,BufferMinUp,INDICATOR_DATA); SetIndexBuffer(3,BufferMinDown,INDICATOR_DATA); ArraySetAsSeries(BufferMaxUp,true); ArraySetAsSeries(BufferMaxDown,true); ArraySetAsSeries(BufferMinUp,true); ArraySetAsSeries(BufferMinDown,true); //--- PlotIndexSetDouble(0,PLOT_EMPTY_VALUE,0); PlotIndexSetDouble(1,PLOT_EMPTY_VALUE,0); PlotIndexSetDouble(2,PLOT_EMPTY_VALUE,0); PlotIndexSetDouble(3,PLOT_EMPTY_VALUE,0); //--- 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[]) { if(prev_calculated==0) { Print("prev_calculated==0, StartDate=",StartDate); if(StartDate1 { BufferMaxUp[i]=interest; BufferMaxDown[i]=interest; BufferMinUp[i]=interest; BufferMinDown[i]=interest; } //--- if(interest>BufferMaxUp[0]) { BufferMaxUp[0]=interest; } if(interest