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 [email protected], Dennis Brown <[EMAIL PROTECTED]> 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 [email protected], "Paul Ho" <paul.tsho@> wrote: >>>> >>>> I think the easiest is to run multiple instances of AB, one per >>> system. am i >>>> missing something? >>>> >>>> >>>> _____ >>>> >>>> From: [email protected] > [mailto:[EMAIL PROTECTED] >>> On Behalf >>>> Of Barry Scarborough >>>> Sent: Monday, 18 August 2008 9:46 PM >>>> To: [email protected] >>>> 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 > > >
