Replacing a loop with CopyRates()?

[Marbo]

Hey guys,

I made this little test code which copies the sizes of all candles in an array and sorts the array. Currently I am doing this with a normal loop. I was wondering if there is another way which might be more efficient using CopyRates(). The whole topic with CopyRates(), CopyBuffer() is  a bit confusing sometimes and maybe someone can tell me how to use it in this case if necessary.

By the way, I am using the value in the middle of the sorted array as a volatility reference to measure if a candle is large. For me it is more suitable than using the ATR as a volatility reference.

void test() {
   int allBars=iBars(_Symbol,_Period);
   if (allBars<=0) return;
   double buffer[];
   if (ArrayResize(buffer,allBars)<0) return;
   int limit=ArraySize(buffer);
   for (int i=0;i<limit;i++) {
      buffer[i]=iHigh(_Symbol,_Period,i)-iLow(_Symbol,_Period,i);
   }
   if (!ArraySort(buffer)) return;
   Print(allBars," sorted.");
}