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> But it would be realy nice, using the current Playback feature, to be able
> to use user-synthesized data at n-ticks/bar... I would love that!
BUT YOU CAN DO THAT ALREADY !!!!
Playback interval is INDEPENDENT from base time interval
of the database. And you CAN playback tick databases
and use N-tick bars !!!!!
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: "Herman" <psytek@xxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Saturday, October 28, 2006 1:08 PM
Subject: RE: [amibroker] Re: AmiBroker 4.88.0 BETA released
>I don't think it is practical or even useful to use years of historical tick
> data. I found Tick data most useful to test/develop RT systems, not to
> actually be used to optimize a trading system. The RT delays involved, as
> well as bad ticks, would make such optimization results questionable at
> best. Using RT recorded data for optimizations would be looking ahead in
> time because it would be "Delay-Less" and assume perfect liquidity. In fact
> one would be able to create HG trading systems that would prove to be total
> failures in real live trading (been there). Since live data delays aren't
> constant there wouldn't be any way to correct for them.
>
> But it would be realy nice, using the current Playback feature, to be able
> to use user-synthesized data at n-ticks/bar... I would love that!
>
> best regards,
> herman
>
> -----Original Message-----
> From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx]On
> Behalf Of Tomasz Janeczko
> Sent: October 28, 2006 5:26 AM
> To: amibroker@xxxxxxxxxxxxxxx
> Subject: Re: [amibroker] Re: AmiBroker 4.88.0 BETA released
>
>
> Hello,
>
>> The playback, as it is, doesn't look like it's going to work well
>> with tick and volume-based charts. The 5-second resolution is too
>> granular and causes the price bars to move way too fast at the 1x
>> speed level. It needs to be a 1 second resolution to be usable for
>> real-time practice on tick and volume charts.
>
> Did you notice the name? It is called "BAR playback".
> Not "TICK playback". Bars by nature in AB are from 5 seconds up.
>
> The advantage of BAR playback is that does not require recorded full stream
> of ticks
> to operate. What you are asking is TICK playback but this requires
> recording all ticks in real time for all symbols
> (backfill is NOT enough because in most cases it misses bid/ask )
> - this is LENGHTY process you need to wait for entire day recording
> in real time data for just one day plus it would take huge amounts
> of hard disk space (approx 1GB for 1 day of ticks for 100 symbols).
>
> It will arrive someday but you need to understand that it is completely
> different story that BAR playback.
>
>
>> When I press the playback button, the popup dialog should already
>> know the date range of the active chart and fill in the beginning
>> and ending date as the defaults.
> I disagree with your suggestion because one may want to see only PART of it.
> And now, once you setup start and end according to your needs
> you can close and re-open and start/end dates remain. This is superior.
>
>> The slider bar is also too granular (jumpy).
> No it is NOT. The granularity of the slider is ONE STEP.
>
> It can not be finer than that. However your SCREEN has limited resolution
> and using the MOUSE you only can move by ONE PIXEL.
> This is limitation of your input device (mouse/screen) not the slider.
> So if you want to move by one step use buttons < > or use
> keyboard <- -> cursor buttons to move slider because this way.
>
> Also note that when you have "skip afterhours" / "skip weekends"
> checkboxes enabled the slider will SKIP after hours
> and this may be what you think is "jumpy" behaviour but it is
> just what you have requested it to do (skipping the afterhours).
>
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: "scourt2000" <stevehite@xxxxxxxxxxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Saturday, October 28, 2006 5:06 AM
> Subject: [amibroker] Re: AmiBroker 4.88.0 BETA released
>
>
>>
>> Tomasz,
>>
>> The playback, as it is, doesn't look like it's going to work well
>> with tick and volume-based charts. The 5-second resolution is too
>> granular and causes the price bars to move way too fast at the 1x
>> speed level. It needs to be a 1 second resolution to be usable for
>> real-time practice on tick and volume charts.
>>
>> When I press the playback button, the popup dialog should already
>> know the date range of the active chart and fill in the beginning
>> and ending date as the defaults.
>>
>> The slider bar is also too granular (jumpy). A box where I can
>> enter a specific time to go directly to would help with that.
>>
>> Good work Tomasz. It just needs some minor refinements to be of
>> full use to those of us who trade futures with tick-based charts.
>>
>>
>> --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@xxx>
>> wrote:
>>>
>>> Thanks Joe and all the others for your comments on new version.
>>>
>>> Best regards,
>>> Tomasz Janeczko
>>> amibroker.com
>>> ----- Original Message -----
>>> From: "Joe Landry" <jelandry@xxx>
>>> To: <amibroker@xxxxxxxxxxxxxxx>
>>> Sent: Friday, October 27, 2006 11:24 PM
>>> Subject: Re: [amibroker] AmiBroker 4.88.0 BETA released
>>>
>>>
>>> > Tomasz: Thanks these new features are very nice.
>>> >
>>> > IMHO, the "synch chart on select" feature will save countless
>> minutes
>>> > AND since I'm in the low level pattern recognition mode, the
>> playback
>>> > feature
>>> > is also great to have.
>>> >
>>> > Best regards
>>> > JOE
>>> >
>>> >
>>> > ----- Original Message -----
>>> > From: "Tomasz Janeczko" <groups@xxx>
>>> > To: <amibroker@xxxxxxxxxxxxxxx>; <amibroker-
>> beta@xxxxxxxxxxxxxxx>;
>>> > <amibroker-news@xxxxxxxxxxxxxxx>
>>> > Sent: Friday, October 27, 2006 2:14 PM
>>> > Subject: [amibroker] AmiBroker 4.88.0 BETA released
>>> >
>>> >
>>> >> Hello,
>>> >>
>>> >> AmiBroker 4.88.0 BETA relased:
>>> >> <http://www.amibroker.com/devlog/2006/10/27/amibroker-4880-beta-
>> released/>
>>> >>
>>> >> Do NOT FORGET to read the READ ME, especially the "CHANGE LOG"
>> part.
>>> >>
>>> >> It contains THE DOCUMENTATION on how to use
>>> >>
>>> >> new features and lists all changes.
>>> >>
>>> >> <http://www.amibroker.com/devlog/wp-
>> content/uploads/2006/10/readme4880.html>
>>> >>
>>> >> Best regards,
>>> >> Tomasz Janeczko
>>> >> amibroker.com
>>> >>
>>> >>
>>> >>
>>> >> 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
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>>
>>
>>
>>
>>
>>
>> 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
>
>
>
>
>
>
> 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
>
>
>
>
>
>
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