For those never having changed userid's, I'd caution to ensure that present userid, default, is saved prior to adding a new one. If not saved prior to making a new one it can be PIA, trying to find stuff. Dave
----- Original Message ----- From: Fred Tonetti To: [email protected] Sent: Monday, August 18, 2008 7:57 AM Subject: RE: [amibroker] Re: About Automatic Analysis 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], "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:[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 > ------------------------------------------------------------------------------ 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 for free now!
