Re: [amibroker] Equity used to calculate position size

["Tomasz Janeczko" <groups@xxxxxxxxxxxxx>]

Hello,

When everything fails READ THE MANUAL:
http://www.amibroker.com/guide/h_backtest.html

(there is a part "Position sizing" that explains how to do what you are trying to do).

If you are interested in using simple risk-adjusted position sizing,
you can use NEGATIVE pos size to refer to actual Equity WITHOUT calling Equity()
function.

PositionSize= -10/(Close-trstoplevel);

In general case:
Equity() function is not provided to create equity-feedback formulas (chicken-and-egg problem).

To do complex equity-feedback system you may need to use custom backtester
http://www.amibroker.com/guide/a_custombacktest.html



Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message ----- 
From: "pmxgs" <pmxgs@xxxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Thursday, April 05, 2007 6:57 PM
Subject: [amibroker] Equity used to calculate position size


> Hi,
> 
> I'm using this code to calculate position size:
> E=Equity();
> risk=0.1*E;
> PositionSize=(0.1*E)/(Close-trstoplevel);
> 
> But I'm not getting the values that I expect.
> The (close-trstoplevel) is working fine, I've ploted this to confirm it.
> But when I plot E it doesn't match the Equity value , so the problem
> comes from here. For example my equity on one day is 54.678 and the E
> returns only 319.
> Can someone tell me how to obtain the equity value, so that i can
> calculate the positionsize correctly.
> 
> thanks in advance
> 
> 
> 
> Please note that this group is for discussion between users only.
> 
> To get support from AmiBroker please send an e-mail directly to 
> SUPPORT {at} amibroker.com
> 
> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> http://www.amibroker.com/devlog/
> 
> For other support material please check also:
> http://www.amibroker.com/support.html
> 
> Yahoo! Groups Links
> 
> 
> 
> 
>


Please note that this group is for discussion between users only.

To get support from AmiBroker please send an e-mail directly to 
SUPPORT {at} amibroker.com

For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
http://www.amibroker.com/devlog/

For other support material please check also:
http://www.amibroker.com/support.html
 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/amibroker/

<*> Your email settings:
    Individual Email | Traditional

<*> To change settings online go to:
    http://groups.yahoo.com/group/amibroker/join
    (Yahoo! ID required)

<*> To change settings via email:
    mailto:amibroker-digest@xxxxxxxxxxxxxxx 
    mailto:amibroker-fullfeatured@xxxxxxxxxxxxxxx

<*> To unsubscribe from this group, send an email to:
    amibroker-unsubscribe@xxxxxxxxxxxxxxx

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/