Sort ATR by hour - mql4

Question

Hello Im wondering if there is a way I can somehow view ATR by hour, so when it calculates results in has 24 different values from 00:00 to 23:00. I would like the average to be of the ranges for that hour only in the lookback period. (for example hour 02:00 compares it range to the other 02:00 ranges in the look back period)
Original ATR Code
//| ATR.mq4 |
//| Copyright 2005-2014, MetaQuotes Software Corp. |
//| http://www.mql4.com |
//+------------------------------------------------------------------+
#property copyright "2005-2014, MetaQuotes Software Corp."
#property link "http://www.mql4.com"
#property description "Average True Range"
#property strict
//--- indicator settings
#property indicator_separate_window
#property indicator_buffers 1
#property indicator_color1 DodgerBlue
//--- input parameter
input int InpAtrPeriod=14; // ATR Period
//--- buffers
double ExtATRBuffer[];
double ExtTRBuffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int OnInit(void)
{
string short_name;
//--- 1 additional buffer used for counting.
IndicatorBuffers(2);
IndicatorDigits(Digits);
//--- indicator line
SetIndexStyle(0,DRAW_LINE);
SetIndexBuffer(0,ExtATRBuffer);
SetIndexBuffer(1,ExtTRBuffer);
//--- name for DataWindow and indicator subwindow label
short_name="ATR("+IntegerToString(InpAtrPeriod)+")";
IndicatorShortName(short_name);
SetIndexLabel(0,short_name);
//--- check for input parameter
if(InpAtrPeriod<=0)
{
Print("Wrong input parameter ATR Period=",InpAtrPeriod);
return(INIT_FAILED);
}
//---
SetIndexDrawBegin(0,InpAtrPeriod);
//---
return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| Average True Range |
//+------------------------------------------------------------------+
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[])
{
int i,limit;
//--- check for bars count and input parameter
if(rates_total<=InpAtrPeriod || InpAtrPeriod<=0)
return(0);
//--- counting from 0 to rates_total
ArraySetAsSeries(ExtATRBuffer,false);
ArraySetAsSeries(ExtTRBuffer,false);
ArraySetAsSeries(open,false);
ArraySetAsSeries(high,false);
ArraySetAsSeries(low,false);
ArraySetAsSeries(close,false);
//--- preliminary calculations
if(prev_calculated==0)
{
ExtTRBuffer[0]=0.0;
ExtATRBuffer[0]=0.0;
//--- filling out the array of True Range values for each period
for(i=1; i<rates_total; i++)
ExtTRBuffer[i]=MathMax(high[i],close[i-1])-MathMin(low[i],close[i-1]);
//--- first AtrPeriod values of the indicator are not calculated
double firstValue=0.0;
for(i=1; i<=InpAtrPeriod; i++)
{
ExtATRBuffer[i]=0.0;
firstValue+=ExtTRBuffer[i];
}
//--- calculating the first value of the indicator
firstValue/=InpAtrPeriod;
ExtATRBuffer[InpAtrPeriod]=firstValue;
limit=InpAtrPeriod+1;
}
else
limit=prev_calculated-1;
//--- the main loop of calculations
for(i=limit; i<rates_total; i++)
{
ExtTRBuffer[i]=MathMax(high[i],close[i-1])-MathMin(low[i],close[i-1]);
ExtATRBuffer[i]=ExtATRBuffer[i-1]+(ExtTRBuffer[i]-ExtTRBuffer[i-InpAtrPeriod])/InpAtrPeriod;
}
//--- return value of prev_calculated for next call
return(rates_total);
}
//+------------------------------------------------------------------+````