STD_v2

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

//|                                                          STD.mq5 |

//|                                        Copyright © 2010, BECEMAL | 

//|                                           http://www.becemal.ru/ | 

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

//---- 02B>@AB2> 8=48:0B>@0

#property copyright "Copyright © 2010, BECEMAL"

//---- AAK;:0 =0 A09B 02B>@0

#property link "http://www.becemal.ru/"

#property description "The Simple Trend Detector. Based on code RSI"

//---- =><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

//---- 4;O @0AGQB0 8 >B@8A>2:8 8=48:0B>@0 8A?>;L7>20=> 420 1CD5@0

#property indicator_buffers 1

//---- 8A?>;L7>20=> 420 3@0D8G5A:8E ?>AB@>5=8O

#property indicator_plots   1

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

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

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

//---- >B@8A>2:0 8=48:0B>@0 1 2 2845 ;8=88

#property indicator_type1   DRAW_LINE

//---- 2 :0G5AB25 F25B0 1KG59 ;8=88 8=48:0B>@0 8A?>;L7>20= Violet F25B

#property indicator_color1  clrViolet

//---- ;8=8O 8=48:0B>@0 1 - =5?@5@K2=0O :@820O

#property indicator_style1  STYLE_SOLID

//---- B>;I8=0 ;8=88 8=48:0B>@0 1 @02=0 2

#property indicator_width1  2

//---- >B>1@065=85 1KG59 <5B:8 8=48:0B>@0

#property indicator_label1  "Simple Trend Detector"

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

//| 0@0<5B@K >B>1@065=8O 3>@87>=B0;L=KE C@>2=59 |

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

#property indicator_level1 80

#property indicator_level2 50

#property indicator_level3 20

#property indicator_levelcolor clrRoyalBlue

#property indicator_levelstyle STYLE_DASHDOTDOT

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

//| @0=8FK >:=0 8=48:0B>@0                      |

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

#property indicator_minimum 0

#property indicator_maximum 100

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

//| E>4=K5 ?0@0<5B@K 8=48:0B>@0                 |

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

input uint STDPeriod=15;

input int Shift=0; // A4283 8=48:0B>@0 ?> 3>@87>=B0;8 2 10@0E 

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

//---- >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 STDBuffer[];

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

int min_rates_total;

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

int Count[];

double Pos[],Neg[];

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

//|  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()

  {

//---- 8=8F80;870F8O 3;>10;L=KE ?5@5<5==KE 

   min_rates_total=int(STDPeriod);



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

   ArrayResize(Count,STDPeriod);

   ArrayResize(Pos,STDPeriod);

   ArrayResize(Neg,STDPeriod);



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

   SetIndexBuffer(0,STDBuffer,INDICATOR_DATA);

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

   PlotIndexSetInteger(0,PLOT_SHIFT,Shift);

//---- >ACI5AB2;5=85 A42830 =0G0;0 >BAGQB0 >B@8A>2:8 8=48:0B>@0 1 =0 min_rates_total

   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);

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

   ArraySetAsSeries(STDBuffer,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,"Simple Trend Detector");

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

   IndicatorSetInteger(INDICATOR_DIGITS,0);

//----

  }

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

//| 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[],     // F5=>2>9 <0AA82 <0:A8<C<>2 F5=K 4;O @0AGQB0 8=48:0B>@0

                const double& low[],      // F5=>2>9 <0AA82 <8=8<C<>2 F5=K  4;O @0AGQB0 8=48:0B>@0

                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 limit,bar;



//---- @0AGQBK =5>1E>48<>3> :>;8G5AB20 :>?8@C5<KE 40==KE 8 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 @0AG5B0 2A5E 10@>2

      ArrayInitialize(Count,0);

      ArrayInitialize(Pos,0.0);

      ArrayInitialize(Neg,0.0);

     }

   else

     {

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

     }



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

   ArraySetAsSeries(open,true);

   ArraySetAsSeries(close,true);



//---- A=>2=>9 F8:; 8A?@02;5=8O 8 >:@0H820=8O A25G59

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

     {

      double positive=NULL;

      double negative=NULL;

      double rel=close[bar]-open[bar];

      if(rel>0) positive=+rel;

      else      negative=-rel;

      Pos[Count[0]]=positive;

      Neg[Count[0]]=negative;

      

      for(int kkk=0; kkk<int(STDPeriod); kkk++) 

        {

         double Norm=int(STDPeriod)-kkk+1;

         positive+=Norm*Pos[Count[kkk]];

         negative+=Norm*Neg[Count[kkk]]; 

        }

        

      double Den=positive+negative;

      if(!Den) STDBuffer[bar]=100;

      else STDBuffer[bar]=100*positive/Den;

      

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

     }

//----     

   return(rates_total);

  }

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