Daily Percent Change 1.1

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

//|                                                      ProjectName |

//|                                      Copyright 2012, CompanyName |

//|                                       http://www.companyname.net |

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

/*------------------------------------------------------------------+

//| Daily Percent Change                                            |

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

*/



#property copyright "Copyright © 2019, Rob Rice"

#property version   "1.2"

#property strict

#property indicator_separate_window

#property indicator_buffers    1

#property indicator_color1     LightSeaGreen



//--- input parameter



#property indicator_level2     0.85

#property indicator_level1    -0.85

#property indicator_levelcolor clrSilver

#property indicator_levelstyle STYLE_DOT



//--- buffers



double DPCBuffer[];  // declare array

double O,C;

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

//| Custom indicator initialization function                         |

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



int OnInit(void)

  {

   SetIndexStyle(0,DRAW_LINE);

   SetIndexBuffer(0,DPCBuffer);                 // assign array to buffer

   string short_name="Daily Percent Change";

   IndicatorShortName(short_name);

   return(INIT_SUCCEEDED);

  }

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

//| Custom indicator iteration function                              |

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

int OnCalculate(const int rates_total,

                const int prev_calculated,

                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[])



  {



//--- prevent total recalculation

   int i=rates_total-prev_calculated-1;

//--- current value should be recalculated

   if(i<0)

      i=0;

//---

   while(i>=0)

     {

      if(TimeHour(Time[i])==0 && TimeMinute(Time[i])==0)

        {

         O=Open[i];

        }

      if(O==0) O=Open[i];

      C=iClose(NULL,0,i);

      DPCBuffer[i]=NormalizeDouble(((C-O)/O*100),2);

      i--;

     }

//---

   return(rates_total);

  }

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