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[amibroker] Re: Walk Forward Issue



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Oops,
This message became a mess as Yahoo apparently removed most of the spaces, destroying the layout..
Results in the format (Sample, Profit, No. of Trades) are:
(IS1,533,1) (OOS1,1126,2) (IS2,474,1) (OOS2,-537,2) (IS3,43,1) (OOS3,784,2).
I hope this comes out a bit clearer!

Brian


--- In amibroker@xxxxxxxxxxxxxxx, "brianw468" <wild21@xxx> wrote:
>
> Hi
> I recently tested a trading system but got some strange results from the WF test. The WF process used exhaustive optimization.
> An extract from the results (too large to reproduce in full) is:-
> Item    Profit    No. Trades
> IS1     533          1
> OOS1    1126         2
> 
> IS2     474          1
> OOS2    -537         2
> 
> IS3       43         1
> OOS      784         2
> 
> In two cases the OOS results are better than the preceding IS results. Though a little surprising,this is quite plausible, because the time periods differ.
> However,the IS2 profit is much poorer than the OOS1 profit, and this is a worry since exhaustive optimization is used, and the time periods are the same. Can anyone offer an explanation? Would it lie in the way profit is handled when a trade is not completed by the end of the selected period?
> 
> Thanks
> Brian
>




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