Indicator doesn't plot - TickVolume/Abs(High-Low)

[Tobias Johannes Zimmer]

Hi,

tried this today, it compiles without problems but it doesn't show any graph... I just took the Volumes indicator from Examples and chaged the calculation method and the names of the functions and variables that I saw fit. Properties are still the same except colors, I figured it would work the same and look similar to the original Volumes with the colored bars. Or maybe I am missing something? I have no clue why it doesn't work.

It is to show a ratio of the tick volume per wick length (volue per movement)

//Looking at a chart one notices the difference in height of the candle bars in times of high vs. low volatility.
//What we can't see is what happens below the surface: How much volume is contained in a movement. Often times it shows that
//the Volumes of Buyers and Sellers eliminate each other at least partially. Perhaps this value shows something about the
//market's activity and the decisiveness of the participants. It is similar to the inversion of the AMA's efficiency ratio
//where the noise is corrected by subtraction of the error.
//But in this case the noise might be a value that gives us information about the heat of the market.

//---INDICATOR TickPerWick (Heat)


//--- indicator settings
#property indicator_separate_window
#property indicator_buffers 2
#property indicator_plots   1
#property indicator_type1   DRAW_COLOR_HISTOGRAM
#property indicator_color1  clrGold,clrRoyalBlue
#property indicator_style1  0
#property indicator_width1  1
#property indicator_minimum 0.0
//--- input data
input ENUM_APPLIED_VOLUME InpVolumeType=VOLUME_TICK;    
//--- indicator buffers
double ExtHeatBuffer[];
double ExtColorsBuffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
void OnInit()
  {
//--- buffers
   SetIndexBuffer(0,ExtHeatBuffer,INDICATOR_DATA);
   SetIndexBuffer(1,ExtColorsBuffer,INDICATOR_COLOR_INDEX);
//--- name for DataWindow and indicator subwindow label
   IndicatorSetString(INDICATOR_SHORTNAME,"TickPerWick");
//--- indicator digits
   IndicatorSetInteger(INDICATOR_DIGITS,0);
  }
//+------------------------------------------------------------------+
//|  Heat                                                         |
//+------------------------------------------------------------------+
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(rates_total<2)
      return(0);
//--- starting work
   int pos=prev_calculated-1;
//--- correct position
   if(pos<1)
     {
      ExtHeatBuffer[0]=0;
      pos=1;
     }
//--- main cycle
   if(InpVolumeType==VOLUME_TICK)
      CalculateHeat(pos,rates_total,tick_volume,high,low);
   else
      CalculateHeat(pos,rates_total,volume,high,low);
//--- OnCalculate done. Return new prev_calculated.
   return(rates_total);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
void CalculateHeat(const int pos,const int rates_total,const long& volume[], const double& high[], const double& low[])
  {
   ExtHeatBuffer[0]=(double)volume[0]/MathAbs((double) high[0]-(double) low[0]);
   ExtColorsBuffer[0]=0.0;
//---
   for(int i=pos; i<rates_total && !IsStopped(); i++)
     {
      double curr_heat=(double)volume[i]/MathAbs((double) high[i]-(double) low[i]);
      double prev_heat=((double)volume[i-1]/MathAbs((double) high[i-1]-(double) low[i-1]));
      //--- calculate indicator
      ExtHeatBuffer[i]=curr_heat;

      if(curr_heat>prev_heat)
         ExtColorsBuffer[i]=0.0;
      else
         ExtColorsBuffer[i]=1.0;
     }
//---
  }
//+------------------------------------------------------------------

Here is the Result:

[Alain Verleyen]

pennyhunter:

Hi,

tried this today, it compiles without problems but it doesn't show any graph... I just took the Volumes indicator from Examples and chaged the calculation method and the names of the functions and variables that I saw fit. Properties are still the same except colors, I figured it would work the same and look similar to the original Volumes with the colored bars. Or maybe I am missing something? I have no clue why it doesn't work.

It is to show a ratio of the tick volume per wick length (volue per movement)

Here is the Result:

Look at the log. What will happen if the high equals the low for a candle ?

[Shino Unada]

pennyhunter:

Hi,

It is to show a ratio of the tick volume per wick length (volue per movement)

Here is the Result:

Here you have a division by zero error.

double curr_heat=(double)volume[i]/MathAbs((double) high[i]-(double) low[i]);
double prev_heat=((double)volume[i-1]/MathAbs((double) high[i-1]-(double) low[i-1]));

[Tobias Johannes Zimmer]

Alain Verleyen:
Look at the log. What will happen if the high equals the low for a candle ?

Nagisa Unada:

Here you have a division by zero error.

Oh okay thanks.

You might have noticed that I don't come from programming.

Will this article help me with the production of said indicator as much as I think it will: https://www.mql5.com/en/articles/10