//+------------------------------------------------------------------+ //| Murreys_Math_Oscillator.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 "Murreys Math Oscillator" #property indicator_separate_window #property indicator_buffers 2 #property indicator_plots 1 //--- plot MMO #property indicator_label1 "Murreys Math" #property indicator_type1 DRAW_COLOR_HISTOGRAM #property indicator_color1 clrLime,clrSpringGreen,clrLimeGreen,clrGreen,clrSaddleBrown,clrChocolate,clrTan,clrRed #property indicator_style1 STYLE_SOLID #property indicator_width1 2 //--- enums enum ENUM_INPUT_YES_NO { INPUT_YES = 1, // Yes INPUT_NO = 0 // No }; //--- input parameters input uint InpPeriod = 100; // Period input double InpMultiplier = 0.125; // Multiplier input ENUM_INPUT_YES_NO InpShowLevels = INPUT_YES; // Show levels //--- indicator buffers double BufferMMO[]; double BufferColors[]; //--- global variables double multiplier; double level_2; double level_4; double level_6; double level_8; int period; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int OnInit() { //--- set global variables period=int(InpPeriod<1 ? 1 : InpPeriod); multiplier=(InpMultiplier<0 ? 0 : InpMultiplier); level_2=2*multiplier; level_4=4*multiplier; level_6=6*multiplier; level_8=8*multiplier; //--- indicator buffers mapping SetIndexBuffer(0,BufferMMO,INDICATOR_DATA); SetIndexBuffer(1,BufferColors,INDICATOR_COLOR_INDEX); //--- setting indicator parameters IndicatorSetString(INDICATOR_SHORTNAME,"Murreys Math oscillator ("+(string)period+")"); IndicatorSetInteger(INDICATOR_DIGITS,Digits()); IndicatorSetInteger(INDICATOR_LEVELS,(InpShowLevels ? 8 : 0)); if(InpShowLevels) { IndicatorSetDouble(INDICATOR_LEVELVALUE,0, level_8); IndicatorSetDouble(INDICATOR_LEVELVALUE,1, level_6); IndicatorSetDouble(INDICATOR_LEVELVALUE,2, level_4); IndicatorSetDouble(INDICATOR_LEVELVALUE,3, level_2); IndicatorSetDouble(INDICATOR_LEVELVALUE,4,-level_2); IndicatorSetDouble(INDICATOR_LEVELVALUE,5,-level_4); IndicatorSetDouble(INDICATOR_LEVELVALUE,6,-level_6); IndicatorSetDouble(INDICATOR_LEVELVALUE,7,-level_8); } //--- setting buffer arrays as timeseries ArraySetAsSeries(BufferMMO,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[]) { //--- Установка массивов буферов как таймсерий ArraySetAsSeries(high,true); ArraySetAsSeries(low,true); ArraySetAsSeries(close,true); //--- Проверка и расчёт количества просчитываемых баров if(rates_total1) { limit=rates_total-1; ArrayInitialize(BufferMMO,EMPTY_VALUE); } //--- Расчёт индикатора for(int i=limit; i>=0 && !IsStopped(); i--) { int bl=Lowest(period,i); int bh=Highest(period,i); if(bl==WRONG_VALUE || bh==WRONG_VALUE) continue; double min=low[bl]; double max=high[bh]; double range=max-min; double mid=min+multiplier*range*4.0; BufferMMO[i]=(range!=0 ? 2.0*(close[i]-mid)/range : 0); if(BufferMMO[i]>0) { BufferColors[i]=0; if(BufferMMO[i]>=level_6) BufferColors[i]=3; else { if(BufferMMO[i]>=level_4) BufferColors[i]=2; else { if(BufferMMO[i]>=level_2) BufferColors[i]=1; } } } else { BufferColors[i]=4; if(BufferMMO[i]<=-level_6) BufferColors[i]=7; else { if(BufferMMO[i]<=-level_4) BufferColors[i]=6; else { if(BufferMMO[i]<=-level_2) BufferColors[i]=5; } } } } //--- return value of prev_calculated for next call return(rates_total); } //+------------------------------------------------------------------+ //| Возвращает индекс максимального значения таймсерии High | //+------------------------------------------------------------------+ int Highest(const int count,const int start,const bool as_series=true) { double array[]; ArraySetAsSeries(array,as_series); return(CopyHigh(Symbol(),PERIOD_CURRENT,start,count,array)==count ? ArrayMaximum(array)+start : WRONG_VALUE); } //+------------------------------------------------------------------+ //| Возвращает индекс минимального значения таймсерии Low | //+------------------------------------------------------------------+ int Lowest(const int count,const int start,const bool as_series=true) { double array[]; ArraySetAsSeries(array,as_series); return(CopyLow(Symbol(),PERIOD_CURRENT,start,count,array)==count ? ArrayMinimum(array)+start : WRONG_VALUE); } //+------------------------------------------------------------------+