I am a newbie at using Amibroker and have some questions regarding data feed and backfills. I do not understand why AB needs to backfill and how/when to determine if you need a backfill, so can someone share an overall explanation on this issue?
According to Amibroker's website, it says that QuoteTracker has 1min, 5min, 15min, 60min intraday streaming quote with limited (max. 5 days, usually one day) backfills. 1) Am I able to view different N-range bars and N-tick bars with QuoteTracker's data feed? 2) What does it mean to have limited backfills? Can someone share the way they manage the data with QuoteTracker? How frequently do I have to do backfill? Do I need to leave my computer on 24/5 to collect all ticks? What happens during contract rollover? Thanks for the help!!
