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I disagree TradeSurfer.Patterns do occur, never exactly the same shape, never exactly the same length of time, never the same price action. All curve fitting achieves is showing you what you could have got during the past, but this is not indicative of future performance.When i design a system, i don't choose the best paramaters, i choose the most robust. If a 20month moving average works, then a 19month and a 21month moving average should give similar restuls, then a 18month moving average should give similar to the 19 months, and a 21month should give similar results to the 20 month. If 20month is the only good timeframe, then when the market changes (as it always does), even a tiny bit, you are going to be left with a broken system.RegardsBrad
I disagree TradeSurfer.
Patterns do occur, never exactly the same shape, never exactly the same length of time, never the same price action. All curve fitting achieves is showing you what you could have got during the past, but this is not indicative of future performance.
When i design a system, i don't choose the best paramaters, i choose the most robust. If a 20month moving average works, then a 19month and a 21month moving average should give similar restuls, then a 18month moving average should give similar to the 19 months, and a 21month should give similar results to the 20 month. If 20month is the only good timeframe, then when the market changes (as it always does), even a tiny bit, you are going to be left with a broken system.
Regards
Brad
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