[amibroker] Can FOR Loops go faster?

[Robert Nemeth]

Rather than run loops from 1 to BarCount-1, I think I could save loop time if I 
knew the start and end BarIndex which would correspond to the number of 
quotations or from/to date for an exploration. BeginValue() and EndValue() 
don't 
address this. Is there anyway I can read the Barindex range and set my loop 
parameters on it?

Robert