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Barry,
Virtualization is the way you can isolate multiple complete systems --
like complete hardware machines only all running on the same
hardware. I am sure you know what I am talking about. I run XP as a
single virtual machine on my Macintosh, but server technology allows
running multiple virtual machines at the same time.
BR,
Dennis
On Aug 18, 2008, at 3:13 PM, Barry Scarborough wrote:
> I'm not sure what you mean but I often put multiple systems on one
> page. I watch how they perform compared to the one I am actually auto
> trading. I also add other indicators at times to see if they will add
> anything to the logic.
>
> Barry
>
> --- In amibroker@xxxxxxxxxxxxxxx, Dennis Brown <see3d@xxx> wrote:
>>
>> Would it work to use multiple virtualized systems on the same
> physical
>> machine?
>>
>> Dennis
>>
>> On Aug 18, 2008, at 10:47 AM, Barry Scarborough wrote:
>>
>>> I think it is safer to run multiple instances of AB on separate
>>> systems. I keep getting mixed or confusing results when I try to
> use
>>> two instances on one system. I was trying to capture 5 second data
>>> and run auto trading on the same system. I opened the auto trading
>>> first and then the 5 second. The data in the 5 second instance
> gets
>>> lost and I can't figure out why. I even tried to save it a few
> times
>>> during the day. I run it all day and when I looked at it later it
>>> isn't there. Well some of it is which is even more confusing, the
>>> most recent part. I have the database set to 100,000 bars so I
> should
>>> be able to capture about a month of data. Ain't working. So I
> started
>>> collecting the 5 second data on another system. I will see how
> that
>>> works. If using multiple instances on one system is supposed to
> work
>>> then someone needs to define the parameters for doing so.
>>>
>>> Barry
>>>
>>> --- In amibroker@xxxxxxxxxxxxxxx, "Paul Ho" <paul.tsho@> wrote:
>>>>
>>>> I think the easiest is to run multiple instances of AB, one per
>>> system. am i
>>>> missing something?
>>>>
>>>>
>>>> _____
>>>>
>>>> From: amibroker@xxxxxxxxxxxxxxx
> [mailto:amibroker@xxxxxxxxxxxxxxx]
>>> On Behalf
>>>> Of Barry Scarborough
>>>> Sent: Monday, 18 August 2008 9:46 PM
>>>> To: amibroker@xxxxxxxxxxxxxxx
>>>> Subject: [amibroker] Re: About Automatic Analysis
>>>>
>>>>
>>>>
>>>> Herman he is talking about automatic analysis. How can you run
> more
>>>> than one formula at a time? AA defines the formula that is being
>>>> tested.
>>>>
>>>> You can test more than one system at a time by "forward
> testing". I
>>>> put my formula in a specially designed bar replay indicator that
>>> will
>>>> keep track of the number of positions/shares and the price when
> the
>>>> trade is made. I run BarReplay and feed 5 second data into the
>>>> formula. It tells where the trade is made, the conditions of all
>>> the
>>>> indicators at the trade, whatever the designer wants to track,
> and
>>>> the price at the trade. I calculate the gain as each trade is
>>> closed.
>>>> I post all of that in the interpretation window. Then you can
> click
>>>> on each formula and see what the stats are. I also dump this data
>>>> into _Trace so that I can go back later and focus in on a
> specific
>>>> area using DebugView when it doesn't trade as expected. Tracing
>>> more
>>>> than one formula is a pain and I typically use this for debug
> only.
>>>>
>>>> If you want to check longer periods you can capture hour or 15
>>> minute
>>>> data and feed that into a EOD chart or weekly chart to see what
> is
>>>> going on in them. The shorter the period you feed into your
> formula
>>>> the more accurate the results. Let your imagination run away and
>>> you
>>>> can test/tweak almost anything this way.
>>>>
>>>> IMO that is more accurate than back testing since you are
> tracking
>>>> the almost true performance of the system. Anyway, that is how I
>>>> handle multiple formula analysis at a time.
>>>>
>>>> Barry
>>>>
>>>
>>>
>>>
>>> ------------------------------------
>>>
>>> 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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