Support Board
Date/Time: Mon, 25 Nov 2024 20:41:49 +0000
Post From: Renko Chart Bar Based Backtesting Flattening Issue
| [2024-02-18 09:30:07] |
| User61168 - Posts: 403 |
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rough estimate this applies to each and every type of backtest mechanism out there. No solution within or outside of Sierra Chart is 100% accurate imo. Almost all backtests rely on the quality of dataset (intraday or historical) and with SC,a number of things could mess up easily. The numerous configuration chart settings, chart update interval settings, automatic/continuous rollover settings, start date/time versus actual presence of data in the scid file, actual speed used in running replays etc etc. I hate to say this but backtesting should be used only to validate/confirm the inner workings of a strategy and that's about it imo. After years of spinning wheels with replays, it has been a complete waste of time for me. Better to forward test with a live feed in sim or using micros via "Use as Trade Symbol only" setting on a small live account. Across the 4 selections within market replay, I can only recommend using "calculate at every Tick" mode. I use "Calculate same as realtime" to quickly debug/validate my collection. The other 2 in the dropdown list are unreliable. Never tried bar-based backtest so I am not sure what values it offers. I also could not make sense of using replays with 1) Chart overlays, 2) Additional Symbol 3) multi-chart replays via all charts in chartbook or via linked charts. These are all just toooooo darn slow and time consuming and not very accurate even in tick accuracy mode. especially in backtesting larger periods of time I hate to say this but backtesting "larger" periods on tick data is a pipe dream. It will take few days to backtest using more than 1 year of tick data with CPU running hot big time. disclaimer: this is purely based my own experience with replays. Others might have a different opinion or positive experience. |