Volume_Average

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

//|                                                Volume_Average.mq5|

//|                                    Copyright 2020,Gustavo Alonso |

//|                                             https://www.mql5.com |

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

#property copyright "Copyright 2020,Gustavo Alonso"

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

#property version   "2.00"

#property indicator_separate_window

#property indicator_buffers 3

#property indicator_plots   2

#property indicator_minimum 0



#property indicator_label1  "Volume"

#property indicator_type1   DRAW_COLOR_HISTOGRAM

#property indicator_color1  clrSalmon,clrMediumSeaGreen,clrBlack

#property indicator_style1  STYLE_SOLID

#property indicator_width1  3



#property indicator_label2  "Average"

#property indicator_type2   DRAW_SECTION

#property indicator_color2  clrRoyalBlue

#property indicator_style2  STYLE_DOT

#property indicator_width2  1



input ENUM_APPLIED_VOLUME volType = VOLUME_TICK; //Volume Type

input int                  period = 20;         //Average



double         VolumeBuffer[];

double         VolumeColors[];

double         mm_volume[];



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

//| Custom indicator initialization function                         |

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

int OnInit()

  {



//--- indicator buffers mapping

   SetIndexBuffer(0,VolumeBuffer,INDICATOR_DATA);

   SetIndexBuffer(1,VolumeColors,INDICATOR_COLOR_INDEX);

   SetIndexBuffer(2,mm_volume,INDICATOR_DATA);

   PlotIndexSetDouble(2,PLOT_EMPTY_VALUE,0.0);



   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[])

  {



   if(prev_calculated == 0)

     {

      for(int i=0; i<rates_total; i++)

        {

         VolumeBuffer[i] =(volType==VOLUME_REAL)?(double)volume[i]:(double)tick_volume[i];



         if(i>=period)

           {

            double sum = 0;

            for(int j=period; j>=0; j--)

              {

               sum += VolumeBuffer[i-j];

              }

            mm_volume[i] = sum/period;

           }



         if(close[i] > open[i])

            VolumeColors[i] = 1;



         if(close[i] < open[i])

            VolumeColors[i] = 0;



         if(close[i] == open[i])

            VolumeColors[i] = 2;

        }

     }

   else

     {

      VolumeBuffer[rates_total - 1] =(volType==VOLUME_REAL)?(double)volume[rates_total - 1]:(double)tick_volume[rates_total - 1];

      double sum = 0;

      for(int j=period; j>=0; j--)

        {

         sum += VolumeBuffer[rates_total - 1 - j];

        }

      mm_volume[rates_total - 1] = sum/period;



      if(close[rates_total - 1] > open[rates_total - 1])

         VolumeColors[rates_total - 1] = 1;



      if(close[rates_total - 1] < open[rates_total - 1])

         VolumeColors[rates_total - 1] = 0;



      if(close[rates_total - 1] == open[rates_total - 1])

         VolumeColors[rates_total - 1] = 2;

     }



   return(rates_total);

  }

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