Exibir indicador na Janela Principal

[Francisco Alexandre Da Cruz Junior]

Bom dia, eu modifiquei um indicador para exibir na tela principal em vez de janela separada, porem, nao exibe a linha do indicador.

#property copyright   "Alexandre Júnior"

#property link        "http://www.mql5.com"

#property version     "1.00"

#property description "Média Rápida"

#include <MovingAverages.mqh>

#property indicator_chart_window

#property indicator_buffers 2

#property indicator_plots   1

//--- plot ExtMRBuffer

#property indicator_label1  "MR"

#property indicator_type1   DRAW_LINE

#property indicator_color1  Yellow

#property indicator_style1  STYLE_SOLID

#property indicator_width1  2

//--- default applied price

#property indicator_applied_price PRICE_CLOSE

//--- input parameters

input int InpMRPeriod=8;      // MR period

input int InpMRShift=0;        // MR shift

//--- indicator buffer

double    ExtMRBuffer[];

double    ExtMRBuffer2[];

int       ExtMRPeriod;

int       ExtMRShift;

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

//| MR initialization function                                      |

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

void OnInit()

  {

//--- check for input values

   if(InpMRPeriod<=0)

     {

      ExtMRPeriod=17;

      PrintFormat("Input parameter InpPeriodMR has incorrect value (%d). Indicator will use value %d for calculations.",

                  InpMRPeriod,ExtMRPeriod);

     }

   else

      ExtMRPeriod=InpMRPeriod;

      if(InpMRShift<0)

     {

      ExtMRShift=0;

      printf("Incorrect value for input variable InpStdDevShift=%d. Indicator will use value=%d for calculations.",InpMRShift,ExtMRShift);

     }

   else ExtMRShift=InpMRShift;

      

//--- indicator buffers mapping

   SetIndexBuffer(0,ExtMRBuffer,INDICATOR_DATA);

//--- set accuracy

   IndicatorSetInteger(INDICATOR_DIGITS,_Digits+1);

//--- sets first bar from what index will be drawn

   PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,ExtMRPeriod);

//--- set index shift

   PlotIndexSetInteger(0,PLOT_SHIFT,InpMRShift);

//--- set shortname and change label

   string short_name=StringFormat("MR(%d)",ExtMRPeriod);

   IndicatorSetString(INDICATOR_SHORTNAME,short_name);

   PlotIndexSetString(0,PLOT_LABEL,short_name);

  }

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

//| AMA iteration function                                           |

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

int OnCalculate(const int rates_total,

                const int prev_calculated,

                const int begin,

                 const double &price[])

  {

  int       pos;

//--- check for rates count

//--- draw begin may be corrected

      PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,ExtMRPeriod-1+begin);

   if(rates_total<ExtMRPeriod)

      return(0);

//--- detect position

     pos=prev_calculated-1;

//--- first calculations

     if(pos<ExtMRPeriod)

     {

      pos=ExtMRPeriod-1;

      ArrayInitialize(ExtMRBuffer2,0.0);

      ArrayInitialize(ExtMRBuffer,0.0);

   

     }

//--- main cycle

   for( int i=pos; i<rates_total && !IsStopped(); i++)

     { 

     

      //--- calculate MR

      if(i==InpMRPeriod-1)

               ExtMRBuffer[i]=SimpleMA(i,InpMRPeriod,price);

            else

               ExtMRBuffer[i]=ExponentialMA(i,InpMRPeriod,ExtMRBuffer[i-1],price);

            //--- Calculate StdDev

            ExtMRBuffer2[i]=StdDevFunc(price,ExtMRBuffer,i);

      

     }

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

   return(rates_total);

  }

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

//| Calculate DESV value                                             |

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

double StdDevFunc(const double &price[],const double &ma_price[],int position)

  {

   double dev=0.0;

   for(int i=0; i<ExtMRPeriod; i++)

      dev+=MathPow(price[position-i]-ma_price[position],2);

   dev=MathSqrt(dev/ExtMRPeriod);

   return(dev);

  }

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