Rj_RMA

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

//|                                                       Rj_RMA.mq5 |

//|                            Copyright © 2011,RJ Rjabkov Alexander |

//|                                                     rj-a@mail.ru |

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

#property copyright "Copyright © 2011,RJ Rjabkov Alexander"

#property link      "rj-a@mail.ru"



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

#property version   "1.10"

//---- >B@8A>2:0 8=48:0B>@0 2 3;02=>< >:=5

#property indicator_chart_window 

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

#property indicator_buffers 2 

//---- 8A?>;L7>20=> 2A53> >4=> 3@0D8G5A:>5 ?>AB@>5=85

#property indicator_plots   1

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

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

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

//---- >B@8A>2:0 8=48:0B>@0 2 2845 <=>3>F25B=>9 ;8=88

#property indicator_type1   DRAW_COLOR_LINE

//---- 2 :0G5AB25 F25B>2 B@5EF25B=>9 ;8=88 8A?>;L7>20=K

#property indicator_color1  clrGray,clrDodgerBlue,clrMagenta

//---- ;8=8O 8=48:0B>@0 - =5?@5@K2=0O :@820O

#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  "Rj_RMA"

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

//|  %+  " + "      |

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

input uint CalcPeriodRange=13;   // 5@8>4 8=48:0B>@0

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

input int PriceShift=0;          // !4283 8=48:0B>@0 ?> 25@B8:0;8 2 ?C=:B0E

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



//---- >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 IndBuffer[];

double ColorIndBuffer[];



//---- 1JO2;5=85 ?5@5<5==>9 7=0G5=8O 25@B8:0;L=>3> A42830 <C28=30

double dPriceShift;

//---- 1JO2;5=85 F5;KE ?5@5<5==KE =0G0;0 >BAG5B0 40==KE

int min_rates_total;

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

//| X2MA indicator initialization function                           | 

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

void OnInit()

  {

//---- =8F80;870F8O ?5@5<5==KE =0G0;0 >BAG5B0 40==KE

   min_rates_total=int(CalcPeriodRange+1);



//---- =8F80;870F8O A42830 ?> 25@B8:0;8

   dPriceShift=_Point*PriceShift;



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

   SetIndexBuffer(0,IndBuffer,INDICATOR_DATA);

//---- >ACI5AB2;5=85 A42830 8=48:0B>@0 1 ?> 3>@87>=B0;8

   PlotIndexSetInteger(0,PLOT_SHIFT,Shift);

//---- >ACI5AB2;5=85 A42830 =0G0;0 >BAG5B0 >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,0.0);

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

   ArraySetAsSeries(IndBuffer,true);



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

   SetIndexBuffer(1,ColorIndBuffer,INDICATOR_COLOR_INDEX);

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

   ArraySetAsSeries(ColorIndBuffer,true);



//---- 8=8F80;870F88 ?5@5<5==>9 4;O :>@>B:>3> 8<5=8 8=48:0B>@0

   string shortname;

   StringConcatenate(shortname,"Rj_RMA(",CalcPeriodRange,")");

//---- 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,shortname);



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

   IndicatorSetInteger(INDICATOR_DIGITS,_Digits);

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

  }

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

//| X2MA 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 @0AG5B0

   if(rates_total<min_rates_total) return(0);



//---- 1JO2;5=85 ?5@5<5==KE A ?;020NI59 B>G:>9  

   double b1,b2;

//---- 1JO2;5=85 F5;KE ?5@5<5==KE

   int limit;



//---- @0AGQB AB0@B>2>3> =><5@0 limit 4;O F8:;0 ?5@5AGQB0 10@>2

   if(prev_calculated>rates_total || prev_calculated<=0)// ?@>25@:0 =0 ?5@2K9 AB0@B @0AGQB0 8=48:0B>@0

      limit=rates_total-min_rates_total-1; // AB0@B>2K9 =><5@ 4;O @0AGQB0 2A5E 10@>2

   else limit=rates_total-prev_calculated;  // AB0@B>2K9 =><5@ 4;O @0AGQB0 B>;L:> =>2KE 10@>2



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

   ArraySetAsSeries(high,true);

   ArraySetAsSeries(low,true);



//---- >A=>2=>9 F8:; @0AGQB0 8=48:0B>@0

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

     {

      b1=0.0;

      b2=0.0;

      for(int iii=0; iii<int(CalcPeriodRange); iii++)

        {

         b1+=high[ArrayMaximum(high,bar+iii,CalcPeriodRange)];

         b2+=low[ArrayMinimum(low,bar+iii,CalcPeriodRange)];

        }

      IndBuffer[bar]=NormalizeDouble((b1+b2)/(CalcPeriodRange*2.0),_Digits);

     }



//---- :>@@5:B8@>2:0 7=0G5=8O ?5@5<5==>9 limit

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

      limit--;



//---- A=>2=>9 F8:; @0A:@0A:8 A83=0;L=>9 ;8=88

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

     {

      ColorIndBuffer[bar]=0;

      if(IndBuffer[bar+1]<IndBuffer[bar]) ColorIndBuffer[bar]=1;

      if(IndBuffer[bar+1]>IndBuffer[bar]) ColorIndBuffer[bar]=2;

     }

//----     

   return(rates_total);

  }

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