chase_the_trend_v1

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

//|                                          Chase the trend 1.0.mq5 |

//|                                                    Lazarev Denis |

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

#property copyright "Lazarev Denis"

#property version   "1.00"

#property indicator_chart_window

#property indicator_buffers 1

#property indicator_plots   1

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

//| Custom indicator initialization function                         |

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

#property indicator_label1  "LINE"

#property indicator_type1   DRAW_LINE

#property indicator_color1  clrGold

#property indicator_style1  STYLE_SOLID

#property indicator_width1  2



input int    period   = 10;       //averaging period

input bool   USE_LIMIT= false;    //limiting on/off

                                  //is limitation of indicator value maximal change

input double use_limit= 0.00005;  //Maximal value

                                  //on which indicator can be changed



double         Buffer[];

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

//|                                                                  |

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

int OnInit()

  {

   

   SetIndexBuffer(0,Buffer,INDICATOR_DATA);

   PlotIndexSetDouble(0,PLOT_EMPTY_VALUE,0);

   return(0);

  }

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

//| Custom indicator iteration function                              |

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

int OnCalculate(const int rates_total,

                const int prev_calculated,

                const int begin,

                const double &price[])

  {

//--- calculate the indicator values

   int start=0;

//--- if the calculation is made on a previous run of OnCalculate

   if(prev_calculated>0) start=prev_calculated-1; // set the start of the penultimate bar calculations

//--- fill indicator buffer values

   for(int i=start;i<rates_total-1;i++)

     {

      Buffer[0]=price[0];

      double delta=(price[i]-Buffer[i])/period;

      if(USE_LIMIT && delta>use_limit)

        {

         delta=use_limit;

        }

      if(USE_LIMIT && delta<-use_limit)

        {

         delta=-use_limit;

        }

      Buffer[i+1]=Buffer[i]+delta;

     }

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

   return(rates_total);

  }

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