If you are using OLE / Automation for multiple instances of AB on the same box then you'll need something like different userid's for each instance so that the OLE / Automation commands from each script can specifically deal with each AB instance .
_____ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Barry Scarborough Sent: Monday, August 18, 2008 10:48 AM To: [email protected] Subject: [amibroker] Re: About Automatic Analysis 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] <mailto:amibroker%40yahoogroups.com> ps.com, "Paul Ho" <[EMAIL PROTECTED]> wrote: > > I think the easiest is to run multiple instances of AB, one per system. am i > missing something? > > > _____ > > From: [EMAIL PROTECTED] <mailto:amibroker%40yahoogroups.com> ps.com [mailto:[EMAIL PROTECTED] <mailto:amibroker%40yahoogroups.com> ps.com] On Behalf > Of Barry Scarborough > Sent: Monday, 18 August 2008 9:46 PM > To: [EMAIL PROTECTED] <mailto:amibroker%40yahoogroups.com> ps.com > 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 > _____ I am using the free version of SPAMfighter for private users. It has removed 527 spam emails to date. Paying users do not have this message in their emails. Try SPAMfighter <http://www.spamfighter.com/len> for free now!
