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Thanks Tomasz and Dennis - that's helpful.
I'm not sure what you mean by evolving portfolio equity in the custom backtester - could you provide a simple example?
--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@xxx> wrote:
>
> Hello,
>
> Yes calculation of complex formula in one pane and passing to other panes
> is the simplest application.
>
> Similar thing is making "complex" indicator re-calculate not with every refresh,
> but say only once a minute. The following example shows how to calculate
> not more often than 5 seconds
>
> t = GetPerformanceCounter()/1000;
>
> diff = t - Nz( StaticVarGet("lastt") );
>
> RecalcInterval = 5; // re-calculate ONLY every 5 seconds
>
> if( diff < RecalcInterval
> AND Name() == StaticVarGetText("lastname") )
> {
> Plot( StaticVarGet("precomputedarray"), "PreComputedArray", colorRed );
> }
> else
> {
> something = MA( C, 10 );
> Plot( something, "FreshCalc", colorBlue );
>
> StaticVarSet( "lastt", t );
> StaticVarSet( "precomputedarray", something );
> StaticVarSetText( "lastname", Name() );
>
> }
>
>
> Different way of using it is for example, storing "best" portfolio equity and other
> array metrics in the custom backtester and dynamically displaying them during
> optimization (to watch "evolution" of best result)
>
> Another possibility is creation of composite indicators in a similar way
> as AddToComposite, but faster.
>
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: "Dennis Brown" <see3d@xxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Saturday, March 07, 2009 4:14 AM
> Subject: Re: [amibroker] Re: AmiBroker 5.24.0 BETA released
>
>
> > There had been a lot of discussions in past posts about how static
> > array variables could be used. However, I think the one that is most
> > easily understood would be where you have two panes in a chart and you
> > calculate a complex AFL to get some array in the top chart. However,
> > you want to display an indicator in the lower pane that is derived
> > from that complex calculation. Instead of duplicating the AFL from
> > the top pane again in the lower pane, now the results from the top
> > pane can be saved in a static variable, and the AFL in the lower pane
> > can just use the array value in the same static variable.
> >
> > We have had the ability to pass single values between charts (or AFL
> > passes), but now we can do that with complete arrays. I am sure
> > others will find interesting things to do with static array variables
> > over time.
> >
> > Best regards,
> > Dennis
> >
> >
> > On Mar 6, 2009, at 8:06 PM, droskill wrote:
> >
> >> Very interesting - I'm wondering if someone could provide an simple
> >> example of how one might use the feature - I realize this is
> >> probably obvious to all of you - but I'd be curious to see what
> >> people are using them for.
> >>
> >> --- In amibroker@xxxxxxxxxxxxxxx, "brian_z111" <brian_z111@> wrote:
> >>>
> >>> Thankyou very much Tomasz.
> >>>
> >>> Another small addition that leverages a lot of possibilities.
> >>>
> >>> Again it was the end result of very good communication between you
> >>> and the forum.
> >>>
> >>> Thanks for looking after Natasha too.
> >>>
> >>>
> >>> --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@> wrote:
> >>>>
> >>>> Hello,
> >>>>
> >>>> AmiBroker 5.24.0 BETA is released now:
> >>>> http://www.amibroker.com/devlog/2009/03/06/amibroker-5240-beta-released/
> >>>>
> >>>> This is somewhat special beta because it contains only one fix and
> >>>> introduces only one new feature: array static variables.
> >>>> I decided to release this feature "alone" because the static
> >>>> variable code
> >>>> has been completely rewritten, so in case of any issues, it would
> >>>> be easy
> >>>> to revert to 5.23.
> >>>>
> >>>> Best regards,
> >>>> Tomasz Janeczko
> >>>> amibroker.com
> >>>>
> >>>
> >>
> >>
> >>
> >>
> >> ------------------------------------
> >>
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> >>
> >
> >
> >
> > ------------------------------------
> >
> > **** IMPORTANT PLEASE READ ****
> > This group is for the discussion between users only.
> > This is *NOT* technical support channel.
> >
> > TO GET TECHNICAL SUPPORT send an e-mail directly to
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> >
> > TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at
> > http://www.amibroker.com/feedback/
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> >
> > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> > http://www.amibroker.com/devlog/
> >
> > Yahoo! Groups Links
> >
> >
> >
>
------------------------------------
**** IMPORTANT PLEASE READ ****
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