|
PureBytes Links
Trading Reference Links
|
As a followup to the speed aspect ...
Even for a single symbol I don't see any difference between quickafl
and not with the AFL below ... Is this because of the variable used
in the length parameter as opposed to there being a constant there ?
Again, thanks in advance ...
Len1 = Optimize("Len1", 13, 2, 101, 1);
Len2 = Optimize("Len2", 21, 2, 101, 1);
X1 = EMA(C, Len1);
X2 = EMA(C, Len2);
Buy = Cross(X1, X2);
Sell = Cross(X2, X1);
--- In amibroker@xxxxxxxxxxxxxxx, Fred Tonetti <ftonetti@xxx> wrote:
>
> TJ,
>
>
>
> In regards to item #7 .
>
>
>
> - I seem to get a syntax error when using SetBarsRequired
(sbsAll,
> sbsAll) . to the effect that . variable sbsAll used without having
been
> initialized . Any ideas ?
>
>
>
> - If one has for loops etc how does one tell where the
first bar is
> ? i.e. if I write
>
>
>
> Beg = LastValue(ValueWhen(Status(FirstBarInRange"), BarIndex()));
>
> End = LastValue(ValueWhen(Status(LastBarInRange"), BarIndex()));
>
>
>
> For ( i = Beg; I <= End - 1; i++ )
>
> {
>
> X = C[i];
>
> }
>
>
>
> I get messages to the effect that I have a subscript out of range .
Is there
> something that I can do to check that a variable of an array is not
out of
> range or some value I can set Beg to in advance of the loop to keep
these
> messages from occurring ?
>
>
>
> - For good size watchlists, I'm not seeing much if any
difference
> in optimization times for some specific number of iterations. This
with AA
> From/To dates set to the last two years and QuickAFL turned on as
opposed to
> all quotes which span some 20+ years. Can you provide any insight
as to why
> that might be ?
>
>
>
> Thanks in advance
>
>
>
>
>
> _____
>
> From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx]
On Behalf
> Of Tomasz Janeczko
> Sent: Friday, July 04, 2008 5:39 AM
> To: amibroker@xxxxxxxxxxxxxxx
> Subject: [amibroker] AmiBroker 5.14.0 BETA released
>
>
>
> Hello,
>
>
>
> AmiBroker 5.14.0 BETA is released now:
>
> <http://www.amibroker.com/devlog/2008/07/04/amibroker-5140-beta-
released/>
> http://www.amibroker.com/devlog/2008/07/04/amibroker-5140-beta-
released/
>
>
>
> CHANGES IN VERSION 5.14.0 (as compared to 5.13.0):
>
> 1. added support for Quarterly and Yearly intervals in all parts
of the
> program
> 2. Changes to drawing made in v5.13 caused improper drawing lines
> located PAST the last available quote (trendlines and pitchforks)
when
> timestamping method was "START TIME of interval". This is fixed
now.
> 3. Fixed AddSummaryRows so 'onlycols' parameter default (zero) is
> applied properly
> 4. Implemeted "Select all" via Ctrl-A keyboard shortcut for all
list
> (result list in AA for example)
> 5. Mouse cursor shape (moving/sizing) reflects the selected study
> priority when more than one study exists under mouse position
> 6. new multiple Volume At Price charts at user-defined points
via new
> PlotVolumeOverlayA function
> 7. QuickAFL can now be used in Automatic Analysis (Settings:
General:
> "Use QuickAFL" - check this box) - this can speed up explorations,
scans and
> backtests by factor of 2+ if range is less than "all quotations".
More on
> this: <http://www.amibroker.com/kb/quickafl>
> http://www.amibroker.com/kb/quickafl
> 8. Range Bars compression now uses TickSize as "1R step".
TickSize
> defined in the Symbol Information, if its value is zero, then 1R
would be
> equivalent to 0.01 movement (for backward compat)
> 9. selecting date in multiple linked charts is now faster because
> redraw is not made when selected line in higher compressed interval
remains
> in place
> 10. selector line in linked charts works OK now, regardless of
selected
> time compression timestamping method
> 11. SetBarsRequired accepts now values -2 in special meaning:
reference
> ALL bars
> 12. Sometimes progress bar did not show the name of optimization
engine
> used. Now it is fixed
> 13. Status("ActionEx") provides more codes than Status("action")
to
> detect special executions states
> 14. Streaming chart update could stall if trend line handle was
clicked
> in attempt to resize and released in the very same position
(without moving
> the mouse). Now it is fixed.
> 15. TimeFrameMode() now supports mode == 4 - which expresses
RANGE bars
> in TickSize units (as opposed to mode 3 that uses dollars for
backward
> compatiblity)
> 16. when display chart timing option is turned on and RT stream is
> active the application STATUS BAR now displays TOTAL time for all
charts, it
> should be BELOW 1 second for RT trading
>
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
>
>
>
>
> _____
>
> I am using the free version of SPAMfighter for private users.
> It has removed 497 spam emails to date.
> Paying users do not have this message in their emails.
> Try SPAMfighter <http://www.spamfighter.com/len> for free now!
>
------------------------------------
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/
|