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This works for a mechanical system. You can take an observation that someone has made, run it through the computer, and see how it affects the stats. Then you decide whether to adopt it or not. THEN you trade the system and it's all robotic...in the scheme of things, psychology is given a tiny little space (hopefully).

Discretionary systems, totally different story. You can't objectively measure their effectiveness on a sample of data. Backtesting of a discretionary system equals taking a sample of data and steping through one bar at a time and asking, do I take the trade or not? It's like training for a sporting event (to some extent). When you think you're fit and ready, you take your method to the market and start playing with real money.

In a discretionary method psychology and gut feel play a much larger part. For this reason there isn't a hope in hell that I would publicise my system, or a pending trade, or any currently open trades onto a discussion forum. (My) psychology and gut feel would be ruined. Some others don't have a problem with this but I dare say they have more experience than I, with a longer standing track record.

<blockquote data-quote="theasxgorilla" data-source="post: 137410" data-attributes="member: 6099">This works for a mechanical system.&nbsp; You can take an observation that someone has made, run it through the computer, and see how it affects the stats.&nbsp; Then you decide whether to adopt it or not.&nbsp; THEN you trade the system and it&#039;s all robotic...in the scheme of things, psychology is given a tiny little space (hopefully).Discretionary systems, totally different story.&nbsp; You can&#039;t objectively measure their effectiveness on a sample of data.&nbsp; Backtesting of a discretionary system equals taking a sample of data and steping through one bar at a time and asking, do I take the trade or not?&nbsp; It&#039;s like training for a sporting event (to some extent).&nbsp; When you think you&#039;re fit and ready, you take your method to the market and start playing with real money.In a discretionary method psychology and gut feel play a much larger part.&nbsp; For this reason there isn&#039;t a hope in hell that I would publicise my system, or a pending trade, or any currently open trades onto a discussion forum.&nbsp; (My) psychology and gut feel would be ruined.&nbsp; Some others don&#039;t have a problem with this but I dare say they have more experience than I, with a longer standing track record.</blockquote>

[QUOTE="theasxgorilla, post: 137410, member: 6099"] This works for a mechanical system. You can take an observation that someone has made, run it through the computer, and see how it affects the stats. Then you decide whether to adopt it or not. THEN you trade the system and it's all robotic...in the scheme of things, psychology is given a tiny little space (hopefully). Discretionary systems, totally different story. You can't objectively measure their effectiveness on a sample of data. Backtesting of a discretionary system equals taking a sample of data and steping through one bar at a time and asking, do I take the trade or not? It's like training for a sporting event (to some extent). When you think you're [I]fit[/I] and ready, you take your method to the market and start playing with real money. In a discretionary method psychology and gut feel play a much larger part. For this reason there isn't a hope in hell that I would publicise my system, or a pending trade, or any currently open trades onto a discussion forum. (My) psychology and gut feel would be ruined. Some others don't have a problem with this but I dare say they have more experience than I, with a longer standing track record. [/QUOTE]

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