RP

ÿþ//+------------------------------------------------------------------+

//|                                                           RP.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 "Range Position oscillator"

#property indicator_separate_window

#property indicator_buffers 1

#property indicator_plots   1

//--- plot RP

#property indicator_label1  "Range Position"

#property indicator_type1   DRAW_LINE

#property indicator_color1  clrRosyBrown

#property indicator_style1  STYLE_SOLID

#property indicator_width1  1

//--- input parameters

input uint     InpPeriod   =  14;   // Range period

input double   InpLevel1   =  38.2; // First level

input double   InpLevel2   =  50.0; // Second level

input double   InpLevel3   =  61.8; // Third level

//--- indicator buffers

double         BufferRP[];

//--- global variables

int            period;

double         level1;

double         level2;

double         level3;

//+------------------------------------------------------------------+

//| Custom indicator initialization function                         |

//+------------------------------------------------------------------+

int OnInit()

  {

//--- set global variables

   period=int(InpPeriod<1 ? 1 : InpPeriod);

   level1=(InpLevel1<1 ? 1 : InpLevel1>97 ? 97 : InpLevel1);

   level2=(InpLevel2<=level1 ? level1+1 : InpLevel2>98 ? 98 : InpLevel2);

   level3=(InpLevel3<=level2 ? level2+1 : InpLevel3>99 ? 99 : InpLevel3);

//--- indicator buffers mapping

   SetIndexBuffer(0,BufferRP,INDICATOR_DATA);

//--- setting indicator parameters

   IndicatorSetString(INDICATOR_SHORTNAME,"Range Position ("+(string)period+" bars)");

   IndicatorSetInteger(INDICATOR_DIGITS,2);

   IndicatorSetInteger(INDICATOR_LEVELS,4);

   IndicatorSetDouble(INDICATOR_LEVELVALUE,0,100);

   IndicatorSetDouble(INDICATOR_LEVELVALUE,1,level3);

   IndicatorSetDouble(INDICATOR_LEVELVALUE,2,level2);

   IndicatorSetDouble(INDICATOR_LEVELVALUE,3,level1);

//--- setting buffer arrays as timeseries

   ArraySetAsSeries(BufferRP,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[])

  {

//--- #AB0=>2:0 <0AA82>2 1CD5@>2 :0: B09<A5@89

   ArraySetAsSeries(high,true);

   ArraySetAsSeries(low,true);

   ArraySetAsSeries(close,true);

//--- @>25@:0 8 @0AGQB :>;8G5AB20 ?@>AG8BK205<KE 10@>2

   if(rates_total<4) return 0;

//--- @>25@:0 8 @0AGQB :>;8G5AB20 ?@>AG8BK205<KE 10@>2

   int limit=rates_total-prev_calculated;

   if(limit>1)

     {

      limit=rates_total-1;

      ArrayInitialize(BufferRP,EMPTY_VALUE);

     }



//---  0AGQB 8=48:0B>@0

   for(int i=limit; i>=0 && !IsStopped(); i--)

     {

      int bl=Lowest(period,i+1);

      int bh=Highest(period,i+1);

      if(bh==WRONG_VALUE || bl==WRONG_VALUE)

         continue;

      double min=low[bl];

      double max=high[bh];

      if(max!=min)

         BufferRP[i]=100.0*(close[i]-min)/(max-min);

     }



//--- return value of prev_calculated for next call

   return(rates_total);

  }

//+------------------------------------------------------------------+

//| >72@0I05B 8=45:A <0:A8<0;L=>3> 7=0G5=8O B09<A5@88 High          |

//+------------------------------------------------------------------+

int Highest(const int count,const int start)

  {

   double array[];

   ArraySetAsSeries(array,true);

   return(CopyHigh(Symbol(),PERIOD_CURRENT,start,count,array)==count ? ArrayMaximum(array)+start : WRONG_VALUE);

  }

//+------------------------------------------------------------------+

//| >72@0I05B 8=45:A <8=8<0;L=>3> 7=0G5=8O B09<A5@88 Low            |

//+------------------------------------------------------------------+

int Lowest(const int count,const int start)

  {

   double array[];

   ArraySetAsSeries(array,true);

   return(CopyLow(Symbol(),PERIOD_CURRENT,start,count,array)==count ? ArrayMinimum(array)+start : WRONG_VALUE);

   return WRONG_VALUE;

  }

//+------------------------------------------------------------------+