Topic: User Guide » Use Previous Bar Value. - Is this page up to date?
I stumbled by accident on this fascinating and detailed page in the FSB Online Manual - on the complex issues around backtester methodology/ies and 'compromises' - to maximize accuracy within the many constraints.
Wiki » Forex Strategy Builder - Overview » User Guide » Use Previous Bar Value
I just need to confirm, please:
Is this page is still (completely) up to date and relevant regarding FSB Previous Bar functionality - does FSB currently function (exactly) this way?
=> Specifically regarding the interesting paragraph below, describing how the 'tester' 'looks ahead' to the bar-end.
"The trick comes from the fact that during the backtest, all bars are accomplished and the tester always sees the final value of the indicators.
It means that the tester cheats when open a position at the bar beginning using an indicator value from the bar closing. The tester looks to the end of a bar and knowing that price and the indicator conditions, it makes decision to entry or not at much earlier time - at bar opening. Unfortunately, no one can do this in a real live trade.
We do not know where the market price will be at the end of the bar. Therefore we must not allow the backtester to do something that we are not able to apply later. "
Just a quick reply to that one question, when convenient, would be very helpful.