//+------------------------------------------------------------------+ //| JpOscillator.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 indicator_separate_window #property indicator_buffers 4 #property indicator_plots 2 //--- plot JP Osc #property indicator_label1 "JPOsc" #property indicator_type1 DRAW_COLOR_HISTOGRAM #property indicator_color1 clrLimeGreen,clrRed #property indicator_style1 STYLE_SOLID #property indicator_width1 2 //--- plot MA #property indicator_label2 "MA" #property indicator_type2 DRAW_LINE #property indicator_color2 clrSkyBlue #property indicator_style2 STYLE_SOLID #property indicator_width2 1 //--- enums enum ENUM_INPUT_YES_NO { INPUT_YES = 1, // Yes INPUT_NO = 0 // No }; //--- input parameters input uint InpPeriod = 5; // Period input ENUM_MA_METHOD InpMethod = MODE_SMA; // Method input ENUM_INPUT_YES_NO InpSmoothing = INPUT_YES; // Smoothing //--- indicator buffers double BufferHist[]; double BufferColors[]; double BufferMA[]; double BufferTMP[]; //--- global variables int period_ma; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- setting global variables period_ma=int(InpPeriod<1 ? 1 : InpPeriod); //--- indicator buffers mapping SetIndexBuffer(0,BufferHist,INDICATOR_DATA); SetIndexBuffer(1,BufferColors,INDICATOR_COLOR_INDEX); SetIndexBuffer(2,BufferMA,INDICATOR_DATA); SetIndexBuffer(3,BufferTMP,INDICATOR_CALCULATIONS); //--- settings indicators parameters IndicatorSetInteger(INDICATOR_DIGITS,Digits()); IndicatorSetString(INDICATOR_SHORTNAME,"JpOscillator("+(string)period_ma+")"); //--- setting plot buffer PlotIndexSetInteger(1,PLOT_SHOW_DATA,false); //--- setting buffer arrays as timeseries ArraySetAsSeries(BufferMA,true); ArraySetAsSeries(BufferHist,true); ArraySetAsSeries(BufferColors,true); ArraySetAsSeries(BufferTMP,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_total1) { limit=rates_total-5; ArrayInitialize(BufferMA,0); ArrayInitialize(BufferHist,EMPTY_VALUE); ArrayInitialize(BufferTMP,0); } //--- Подготовка данных for(int i=limit; i>=0; i--) BufferTMP[i]=(close[i]-(close[i+1]/2+close[i+2]/2))+(close[i]-close[i+4]); //--- Расчёт индикатора for(int i=limit; i>=0; i--) { BufferHist[i]=BufferMA[i]=(InpSmoothing ? MAOnArray(BufferTMP,0,period_ma,0,InpMethod,i) : BufferTMP[i]); BufferColors[i]=(BufferHist[i]>BufferHist[i+1] ? 0 : 1); } //--- return value of prev_calculated for next call return(rates_total); } //+------------------------------------------------------------------+ //| iMAOnArray() https://www.mql5.com/ru/articles/81 | //+------------------------------------------------------------------+ double MAOnArray(double &array[],int total,int period,int ma_shift,int ma_method,int shift) { double buf[],arr[]; if(total==0) total=ArraySize(array); if(total>0 && total<=period) return(0); if(shift>total-period-ma_shift) return(0); //--- switch(ma_method) { case MODE_SMA : { total=ArrayCopy(arr,array,0,shift+ma_shift,period); if(ArrayResize(buf,total)<0) return(0); double sum=0; int i,pos=total-1; for(i=1;i=0) { sum+=arr[pos]; buf[pos]=sum/period; sum-=arr[pos+period-1]; pos--; } return(buf[0]); } case MODE_EMA : { if(ArrayResize(buf,total)<0) return(0); double pr=2.0/(period+1); int pos=total-2; while(pos>=0) { if(pos==total-2) buf[pos+1]=array[pos+1]; buf[pos]=array[pos]*pr+buf[pos+1]*(1-pr); pos--; } return(buf[shift+ma_shift]); } case MODE_SMMA : { if(ArrayResize(buf,total)<0) return(0); double sum=0; int i,k,pos; pos=total-period; while(pos>=0) { if(pos==total-period) { for(i=0,k=pos;i=0) { buf[pos]=sum/weight; if(pos==0) break; pos--; i--; price=array[pos]; sum=sum-lsum+price*period; lsum-=array[i]; lsum+=price; } return(buf[shift+ma_shift]); } default: return(0); } return(0); } //+------------------------------------------------------------------+