RMI_Histogram

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

//|                                                RMI_Histogram.mq5 | 

//|                             Copyright © 2011,   Nikolay Kositsin | 

//|                              Khabarovsk,   farria@mail.redcom.ru | 

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

#property copyright "Copyright © 2011, Nikolay Kositsin"

#property link "farria@mail.redcom.ru"

//---- =><5@ 25@A88 8=48:0B>@0

#property version   "1.00"

//---- >B@8A>2:0 8=48:0B>@0 2 >B45;L=>< >:=5

#property indicator_separate_window 

//---- :>;8G5AB2> 8=48:0B>@=KE 1CD5@>2 3

#property indicator_buffers 3 

//---- 8A?>;L7>20=> >4=> 3@0D8G5A:>5 ?>AB@>5=85

#property indicator_plots   1

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

//|  >1JO2;5=85 :>=AB0=B              |

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

#define RESET  0 // >=AB0=B0 4;O 2>72@0B0 B5@<8=0;C :><0=4K =0 ?5@5AGQB 8=48:0B>@0

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

//|  0@0<5B@K >B@8A>2:8 8=48:0B>@0   |

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

//---- >B@8A>2:0 8=48:0B>@0 2 2845 38AB>3@0<<K

#property indicator_type1   DRAW_COLOR_HISTOGRAM2

//---- 2 :0G5AB25 F25B>2 8=48:0B>@0 8A?>;L7>20=K

#property indicator_color1  clrAqua,clrGray,clrMediumOrchid

//---- ;8=8O 8=48:0B>@0 - A?;>H=0O

#property indicator_style1 STYLE_SOLID

//---- B>;I8=0 ;8=88 8=48:0B>@0 @02=0 2

#property indicator_width1 2

//---- >B>1@065=85 <5B:8 8=48:0B>@0

#property indicator_label1  "RMI_Histogram"

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

//|  >1JO2;5=85 ?5@5G8A;5=89          |

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

enum ENUM_APPLIED_PRICE_ //"8? :>=AB0=BK

  {

   PRICE_CLOSE_ = 1,     //PRICE_CLOSE

   PRICE_OPEN_,          //PRICE_OPEN

   PRICE_HIGH_,          //PRICE_HIGH

   PRICE_LOW_,           //PRICE_LOW

   PRICE_MEDIAN_,        //PRICE_MEDIAN

   PRICE_TYPICAL_,       //PRICE_TYPICAL

   PRICE_WEIGHTED_,      //PRICE_WEIGHTED

   PRICE_SIMPL_,         //PRICE_SIMPL_

   PRICE_QUARTER_,       //PRICE_QUARTER_

   PRICE_TRENDFOLLOW0_,  //PRICE_TRENDFOLLOW0_

   PRICE_TRENDFOLLOW1_,  // TrendFollow_2 Price 

   PRICE_DEMARK_         // Demark Price 

  };

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

//|  %+  " + "      |

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

input uint                 RMIPeriod=14;         // ?5@8>4 8=48:0B>@0

input ENUM_APPLIED_PRICE_  IPC=PRICE_CLOSE_;     // F5=>20O :>=AB0=B0

input uint                 MomPeriod=10;         // Momentum Period

input uint                 HighLevel=70;         // C@>25=L ?5@570:C?0

input uint                 LowLevel=30;          // C@>25=L ?5@5?@>40==>AB8

input int                  Shift=0;              // !4283 8=48:0B>@0 ?> 3>@87>=B0;8 2 10@0E

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



//---- 1JO2;5=85 F5;KE ?5@5<5==KE =0G0;0 >BAGQB0 40==KE

int  min_rates_total;

//---- >1JO2;5=85 48=0<8G5A:8E <0AA82>2, :>B>@K5 1C4CB 2 

// 40;L=59H5< 8A?>;L7>20=K 2 :0G5AB25 8=48:0B>@=KE 1CD5@>2

double UpBuffer[],DnBuffer[],ColorBuffer[];

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

//| Custom indicator initialization function                         |

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

int OnInit()

  {

//---- =8F80;870F8O ?5@5<5==KE =0G0;0 >BAGQB0 40==KE

   min_rates_total=int(MomPeriod);



//---- ?@52@0I5=85 48=0<8G5A:>3> <0AA820 2 8=48:0B>@=K9 1CD5@

   SetIndexBuffer(0,UpBuffer,INDICATOR_DATA);

//---- >ACI5AB2;5=85 A42830 =0G0;0 >BAGQB0 >B@8A>2:8 8=48:0B>@0

   PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,min_rates_total);

//---- CAB0=>2:0 7=0G5=89 8=48:0B>@0, :>B>@K5 =5 1C4CB 2848<K =0 3@0D8:5

   PlotIndexSetDouble(0,PLOT_EMPTY_VALUE,EMPTY_VALUE);

//---- >ACI5AB2;5=85 A42830 8=48:0B>@0 ?> 3>@87>=B0;8 =0 InpKijun

   PlotIndexSetInteger(0,PLOT_SHIFT,Shift);

//---- 8=45:A0F8O M;5<5=B>2 2 1CD5@5 :0: 2 B09<A5@88

   ArraySetAsSeries(UpBuffer,true);



//---- ?@52@0I5=85 48=0<8G5A:>3> <0AA820 2 8=48:0B>@=K9 1CD5@

   SetIndexBuffer(1,DnBuffer,INDICATOR_DATA);

//---- 8=45:A0F8O M;5<5=B>2 2 1CD5@5 :0: 2 B09<A5@88

   ArraySetAsSeries(DnBuffer,true);

//---- ?@52@0I5=85 48=0<8G5A:>3> <0AA820 2 F25B>2>9, 8=45:A=K9 1CD5@   

   SetIndexBuffer(2,ColorBuffer,INDICATOR_COLOR_INDEX);

//---- 8=45:A0F8O M;5<5=B>2 2 1CD5@5 :0: 2 B09<A5@88

   ArraySetAsSeries(ColorBuffer,true);



//--- A>740=85 8<5=8 4;O >B>1@065=8O 2 >B45;L=>< ?>4>:=5 8 2> 2A?;K20NI59 ?>4A:07:5

   IndicatorSetString(INDICATOR_SHORTNAME,"RMI_Histogram("+string(RMIPeriod)+","+string(MomPeriod)+")");

//--- >?@545;5=85 B>G=>AB8 >B>1@065=8O 7=0G5=89 8=48:0B>@0

   IndicatorSetInteger(INDICATOR_DIGITS,0);

//---- :>;8G5AB2>  3>@87>=B0;L=KE C@>2=59 8=48:0B>@0 3   

   IndicatorSetInteger(INDICATOR_LEVELS,3);

//---- 7=0G5=8O 3>@87>=B0;L=KE C@>2=59 8=48:0B>@0   

   IndicatorSetDouble(INDICATOR_LEVELVALUE,0,HighLevel);

   IndicatorSetDouble(INDICATOR_LEVELVALUE,1,50);

   IndicatorSetDouble(INDICATOR_LEVELVALUE,2,LowLevel);

//---- 2 :0G5AB25 F25B>2 ;8=89 3>@87>=B0;L=KE C@>2=59 8A?>;L7>20=K F25B0  

   IndicatorSetInteger(INDICATOR_LEVELCOLOR,0,clrBlue);

   IndicatorSetInteger(INDICATOR_LEVELCOLOR,1,clrGray);

   IndicatorSetInteger(INDICATOR_LEVELCOLOR,2,clrPurple);

//---- 2 ;8=88 3>@87>=B0;L=>3> C@>2=O 8A?>;L7>20= :>@>B:89 HB@8E-?C=:B8@  

   IndicatorSetInteger(INDICATOR_LEVELSTYLE,0,STYLE_DASHDOTDOT);

   IndicatorSetInteger(INDICATOR_LEVELSTYLE,1,STYLE_DASHDOTDOT);

   IndicatorSetInteger(INDICATOR_LEVELSTYLE,2,STYLE_DASHDOTDOT);

//---- 7025@H5=85 8=8F80;870F88

   return(INIT_SUCCEEDED);

  }

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

//| Custom indicator iteration function                              | 

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

int OnCalculate(

                const int rates_total,    // :>;8G5AB2> 8AB>@88 2 10@0E =0 B5:CI5< B8:5

                const int prev_calculated,// :>;8G5AB2> 8AB>@88 2 10@0E =0 ?@54K4CI5< B8:5

                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[]

                )

  {

//---- ?@>25@:0 :>;8G5AB20 10@>2 =0 4>AB0B>G=>ABL 4;O @0AGQB0

   if(rates_total<min_rates_total) return(RESET);



//---- >1JO2;5=8O ;>:0;L=KE ?5@5<5==KE

   int limit,bar;

   static double pos_prev,neg_prev;



//---- @0AG5B AB0@B>2>3> =><5@0 limit 4;O F8:;0 ?5@5AG5B0 10@>2

   if(prev_calculated>rates_total || prev_calculated<=0)// ?@>25@:0 =0 ?5@2K9 AB0@B @0AG5B0 8=48:0B>@0

     {

      limit=rates_total-min_rates_total-1; // AB0@B>2K9 =><5@ 4;O @0AG5B0 2A5E 10@>2

      pos_prev=neg_prev=0.5;

     }

   else limit=rates_total-prev_calculated; // AB0@B>2K9 =><5@ 4;O @0AG5B0 =>2KE 10@>2



//--- 8=45:A0F8O M;5<5=B>2 2 <0AA820E :0: 2 B09<A5@8OE  

   ArraySetAsSeries(open,true);

   ArraySetAsSeries(high,true);

   ArraySetAsSeries(low,true);

   ArraySetAsSeries(close,true);



//---- >A=>2=>9 F8:; @0A:@0A:8 8=48:0B>@0

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

     {

      double diff=PriceSeries(IPC,bar,open,low,high,close)-PriceSeries(IPC,bar+MomPeriod,open,low,high,close);

      double pos=(pos_prev*(RMIPeriod-1)+(diff>0.0?+diff:0.0))/RMIPeriod;

      double neg=(neg_prev*(RMIPeriod-1)+(diff<0.0?-diff:0.0))/RMIPeriod;



      if(neg) UpBuffer[bar]=100.0-100.0/(1+pos/neg);

      else UpBuffer[bar]=50.0;



      DnBuffer[bar]=50.0;

      int clr=1.0;

      if(UpBuffer[bar]>HighLevel) clr=0.0;

      else if(UpBuffer[bar]<LowLevel) clr=2.0;

      ColorBuffer[bar]=clr;



      if(bar)

        {

         pos_prev=pos;

         neg_prev=neg;

        }

     }

//----    

   return(rates_total);

  }

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

//| >;CG5=85 7=0G5=8O F5=>2>9 B09<A5@88                             |

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

double PriceSeries

(

 uint applied_price,// &5=>20O :>=AB0=B0

 uint   bar,// =45:A A42830 >B=>A8B5;L=> B5:CI53> 10@0 =0 C:070==>5 :>;8G5AB2> ?5@8>4>2 =0704 8;8 2?5@Q4).

 const double &Open[],

 const double &Low[],

 const double &High[],

 const double &Close[]

 )

//PriceSeries(applied_price, bar, open, low, high, close)

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

  {

//----

   switch(applied_price)

     {

      //---- &5=>2K5 :>=AB0=BK 87 ?5@5G8A;5=8O ENUM_APPLIED_PRICE

      case  PRICE_CLOSE: return(Close[bar]);

      case  PRICE_OPEN: return(Open [bar]);

      case  PRICE_HIGH: return(High [bar]);

      case  PRICE_LOW: return(Low[bar]);

      case  PRICE_MEDIAN: return((High[bar]+Low[bar])/2.0);

      case  PRICE_TYPICAL: return((Close[bar]+High[bar]+Low[bar])/3.0);

      case  PRICE_WEIGHTED: return((2*Close[bar]+High[bar]+Low[bar])/4.0);



      //----                            

      case  8: return((Open[bar] + Close[bar])/2.0);

      case  9: return((Open[bar] + Close[bar] + High[bar] + Low[bar])/4.0);

      //----                                

      case 10:

        {

         if(Close[bar]>Open[bar])return(High[bar]);

         else

           {

            if(Close[bar]<Open[bar])

               return(Low[bar]);

            else return(Close[bar]);

           }

        }

      //----         

      case 11:

        {

         if(Close[bar]>Open[bar])return((High[bar]+Close[bar])/2.0);

         else

           {

            if(Close[bar]<Open[bar])

               return((Low[bar]+Close[bar])/2.0);

            else return(Close[bar]);

           }

         break;

        }

      //----         

      case 12:

        {

         double res=High[bar]+Low[bar]+Close[bar];

         if(Close[bar]<Open[bar]) res=(res+Low[bar])/2;

         if(Close[bar]>Open[bar]) res=(res+High[bar])/2;

         if(Close[bar]==Open[bar]) res=(res+Close[bar])/2;

         return(((res-Low[bar])+(res-High[bar]))/2);

        }

      //----

      default: return(Close[bar]);

     }

//----

//return(0);

  }

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