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>0 wins and 0 losses, PRR is not output #452791
06/25/15 14:33
06/25/15 14:33
Joined: Sep 2013
Posts: 504
California
G
GPEngine Offline OP
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GPEngine  Offline OP
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Joined: Sep 2013
Posts: 504
California
I have a strategy will all wins and no losses. The Performance Report omits the Profit factor & PRR line.

> Annual return 142%
> Sharpe ratio 1.12
> Kelly criterion 0.23
> R2 coefficient 0.910
> Ulcer index 7.0%
> Prediction error 96%

(Zorro 1.30.1)

Re: >0 wins and 0 losses, PRR is not output [Re: GPEngine] #452795
06/25/15 16:46
06/25/15 16:46
Joined: Jul 2000
Posts: 27,982
Frankfurt
jcl Offline

Chief Engineer
jcl  Offline

Chief Engineer

Joined: Jul 2000
Posts: 27,982
Frankfurt
I believe displaying the profit factor of a strategy with all wins and no losses is beyond today's technology.

Re: >0 wins and 0 losses, PRR is not output [Re: jcl] #452808
06/26/15 03:03
06/26/15 03:03
Joined: Sep 2013
Posts: 504
California
G
GPEngine Offline OP
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GPEngine  Offline OP
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Joined: Sep 2013
Posts: 504
California
Wise guy.

For consistency with the rest of the performance report please produce symbols, such as +++ to represent infinity instead of completely omitting the line.

I parse the Performance Report to assess the fitness of a candidate strategy. PRR plays a role. In this edge case, my parser thought the PRR was 0, a default value, since it was absent.

Re: >0 wins and 0 losses, PRR is not output [Re: GPEngine] #452821
06/26/15 14:11
06/26/15 14:11
Joined: Sep 2013
Posts: 504
California
G
GPEngine Offline OP
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GPEngine  Offline OP
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Joined: Sep 2013
Posts: 504
California
It's already fixed on my side. I'm just trying to help the next person.

Re: >0 wins and 0 losses, PRR is not output [Re: GPEngine] #452847
06/28/15 11:01
06/28/15 11:01
Joined: Jul 2000
Posts: 27,982
Frankfurt
jcl Offline

Chief Engineer
jcl  Offline

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Joined: Jul 2000
Posts: 27,982
Frankfurt
It helps insofar as it illustrates that it is not a very good idea to parse the performance report. You need to fix your parser to all special cases, like this one, and also have to adapt it to any Zorro update that might contain new features or different text in the report. The report omits all figures that are not relevant for the current system and is thus not well suited for machine parsing. It can even be a HTML page in a future version.

For evaluating the result, you got the evaluate function - it was implemented especially for you and others who produce statistics from Zorro runs. You have direct access to the data and won't need to parse text. Better request features for this function, rather than for the performance report.

Re: >0 wins and 0 losses, PRR is not output [Re: jcl] #452849
06/28/15 12:41
06/28/15 12:41
Joined: Feb 2015
Posts: 652
Milano, Italy
M
MatPed Offline
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MatPed  Offline
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Posts: 652
Milano, Italy
Where is described in the wiki the function evaluate?
I have read the description in the editor help. The link to the online manual version does not work to me and doing a browser search does not come up wiky any relevant result
Thank you

Re: >0 wins and 0 losses, PRR is not output [Re: MatPed] #452853
06/28/15 14:37
06/28/15 14:37
Joined: Apr 2008
Posts: 586
Austria
Petra Online
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Petra  Online
Support

Joined: Apr 2008
Posts: 586
Austria
There are no Zorro functions in the Wiki. For Zorro you got the manual, you can look up all functions there. The Wiki is for Gamestudio only.

Re: >0 wins and 0 losses, PRR is not output [Re: Petra] #452863
06/29/15 02:29
06/29/15 02:29
Joined: Jun 2013
Posts: 1,609
D
DdlV Offline
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DdlV  Offline
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Joined: Jun 2013
Posts: 1,609
Hi jcl. FYI, on the Performance Report page of the manual all the evaluate links are broken. In the Help within Zorro, the evaluate page is present.

Re: >0 wins and 0 losses, PRR is not output [Re: DdlV] #452864
06/29/15 07:48
06/29/15 07:48
Joined: Jul 2000
Posts: 27,982
Frankfurt
jcl Offline

Chief Engineer
jcl  Offline

Chief Engineer

Joined: Jul 2000
Posts: 27,982
Frankfurt
Which links do you mean? I found only one evaluate link on the manual page, under "remarks", and that link works as far as I see. - Update: Ah, I see you probably meant the online manual.

Last edited by jcl; 06/29/15 07:56.
Re: >0 wins and 0 losses, PRR is not output [Re: jcl] #452868
06/29/15 12:14
06/29/15 12:14
Joined: Jun 2013
Posts: 1,609
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DdlV Offline
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DdlV  Offline
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Joined: Jun 2013
Posts: 1,609
Yes. The online manual. All work now.

Thanks.


Moderated by  Petra 

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