AbsolutelyNoLagLwma

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

//|                                          AbsolutelyNoLagLwma.mq5 | 

//|                               Copyright © 2018, Nikolay Kositsin | 

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

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

#property copyright "Copyright © 2018, Nikolay Kositsin"

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

#property version   "1.10"

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

#property indicator_chart_window

//---- 4;O @0AGQB0 8 >B@8A>2:8 8=48:0B>@0 8A?>;L7>20= >48= 1CD5@

#property indicator_buffers 2

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

#property indicator_plots   1

//---- >B@8A>2:0 8=48:0B>@0 2 2845 ;8=88

#property indicator_type1   DRAW_COLOR_LINE

//---- 2 :0G5AB25 F25B>2 B@QEF25B=>9 ;8=88 8A?>;L7>20=K

#property indicator_color1  clrViolet,clrGray,clrDodgerBlue

//---- ;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 3

#property indicator_width1  3

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

#property indicator_label1  "AbsolutelyNoLagLwma"

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

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

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

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_,  //TrendFollow_1 Price 

   PRICE_TRENDFOLLOW1_,  //TrendFollow_2 Price 

   PRICE_DEMARK_         //Demark Price

  };

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

//|  %+  " + "      |

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

input uint Length=7; // 3;C18=0 A3;06820=8O                   

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

input int Shift=0; // A4283 ?> 3>@87>=B0;8 2 10@0E

input int PriceShift=0; // c4283 ?> 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 ExtLineBuffer[],ColorExtLineBuffer[];

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

int min_rates_total;

double dPriceShift;

//---- >1JO2;5=85 3;>10;L=KE ?5@5<5==KE

int Count[];

double Price[],Lwma[];

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

//|  5@5AG5B ?>78F88 A0<>3> =>2>3> M;5<5=B0 2 <0AA825               |

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

void Recount_ArrayZeroPos(int &CoArr[],// >72@0B ?> AAK;:5 =><5@0 B5:CI53> 7=0G5=8O F5=>2>3> @O40

                          int Size)

  {

//----

   int numb,Max1,Max2;

   static int count=1;



   Max2=Size;

   Max1=Max2-1;



   count--;

   if(count<0) count=Max1;



   for(int iii=0; iii<Max2; iii++)

     {

      numb=iii+count;

      if(numb>Max1) numb-=Max2;

      CoArr[iii]=numb;

     }

//----

  }

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

//| Custom indicator initialization function                         |

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

void OnInit()

  {

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

   SetIndexBuffer(0,ExtLineBuffer,INDICATOR_DATA);

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

   PlotIndexSetInteger(0,PLOT_SHIFT,Shift);

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

   min_rates_total=int(Length*2.0);

//---- @0A?@545;5=85 ?0<OB8 ?>4 <0AA82K ?5@5<5==KE  

   ArrayResize(Count,Length);

   ArrayResize(Price,Length);

   ArrayResize(Lwma,Length);

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

   PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,min_rates_total);

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

   string shortname;

   StringConcatenate(shortname,"AbsolutelyNoLagLwma(",Length,")");

//--- A>740=85 <5B:8 4;O >B>1@065=8O 2 DataWindow

   PlotIndexSetString(0,PLOT_LABEL,shortname);

//--- 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+1);

//--- 70?@5B =0 >B@8A>2:C 8=48:0B>@>< ?CABKE 7=0G5=89

   PlotIndexSetDouble(0,PLOT_EMPTY_VALUE,NULL);

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

   SetIndexBuffer(1,ColorExtLineBuffer,INDICATOR_COLOR_INDEX);

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

   dPriceShift=_Point*PriceShift;

//----

  }

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

//| 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(0);



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

   int first,bar,weight,clr;

   double sum,sumw,lwma2;



//---- @0AGQB AB0@B>2>3> =><5@0 first 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

     {

      first=0; // AB0@B>2K9 =><5@ 4;O @0AGQB0 2A5E 10@>2

      ArrayInitialize(Count,0);

      ArrayInitialize(Price,0.0);

      ArrayInitialize(Lwma,0.0);

     }

   else first=prev_calculated-1; // AB0@B>2K9 =><5@ 4;O @0AGQB0 =>2KE 10@>2



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

   for(bar=first; bar<rates_total && !IsStopped(); bar++)

     {

      Price[Count[0]]=PriceSeries(IPC,bar,open,low,high,close);

      //----

      sum=0;

      sumw=0;

      for(int kkk=0; kkk<int(Length); kkk++) { weight=int(Length)-kkk; sumw+=weight; sum+=weight*Price[Count[kkk]]; }

      if(sumw) Lwma[Count[0]]=sum/sumw;

      else  Lwma[Count[0]]=NULL;

      //----

      sum=0;

      sumw=0;

      for(int kkk=0; kkk<int(Length); kkk++) { weight=int(Length)-kkk; sumw+=weight; sum+=weight*Lwma[Count[kkk]]; }

      if(sumw) lwma2=sum/sumw;

      else  lwma2=NULL;

      //---- =8F80;870F8O OG59:8 8=48:0B>@=>3> 1CD5@0 ?>;CG5==K< 7=0G5=85< 

      ExtLineBuffer[bar]=lwma2+dPriceShift;

      if(bar<rates_total-1) Recount_ArrayZeroPos(Count,Length);

     }



//---- ?5@5AGQB AB0@B>2>3> =><5@0 first 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

      first=min_rates_total+1;



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

   for(bar=first; bar<rates_total && !IsStopped(); bar++)

     {

      clr=1;

      if(ExtLineBuffer[bar-1]<ExtLineBuffer[bar]) clr=2;

      if(ExtLineBuffer[bar-1]>ExtLineBuffer[bar]) clr=0;

      ColorExtLineBuffer[bar]=clr;

     }

//----     

   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);

  }

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