Hi Mike Thanks for the advise.
The first trade missed is the 4th trade. The MA cross is quite defined and the trade arrow for the buy and sell marks the trade but the trade isn't listed as a trade in the AA trade window. The ticker is the Aussi SPI Futures 1 minute. There is volume on the bar but I don't think this is needed as volume isn't a BUY criteria. FX doesn't have volume and back testing works. I have tried all the options in the back Tester setting including Position Size Shrinking but with no luck. I must be missing the obvious so any further advise from anyone would be welcome. Thanks Peter From: [email protected] [mailto:[email protected]] On Behalf Of Mike Sent: Friday, 9 October 2009 2:46 p.m. To: [email protected] Subject: [amibroker] Re: Why raw signals different than actual trades? Sorry, hit send too quickly. I see that your position sizing appears in the code, and I meant to say ratio of the *bar's* volume, not of the *day's* volume. But, you get the point. There are many settings that affect whether a trade is placed. Go through all the options of the AA window and study them carefully. Position size shrinking is one of the 'usual suspects' in these cases. Turn it on and see if it helps. Mike --- In [email protected] <mailto:amibroker%40yahoogroups.com> , "Mike" <sfclimb...@...> wrote: > > Just stating opening equity is not enough information. What is your position sizing, what is the max number of trades, do you allow position size shrinking, would your trade represent too large a ratio of the days trading volume, are you using commissions? All of these will impact whether a trade is taken or not. > > Mike > > --- In [email protected] <mailto:amibroker%40yahoogroups.com> , "Peter" <aretep@> wrote: > > > > Hi > > > > I'm having similar problems with some trades being missed on 1 minute data. > > The arrows for actual trades are correct but some trades are missed by the > > back tester. Below is the code I used, Equity is 1,000,000. > > > > > > > > As I notice if I change to hour bars there is no problem I wonder if data > > integrity an issue? > > > > > > > > Any help would be appreciated > > > > > > > > Thanks > > > > Peter > > > > > > > > > > > > SetOption("FuturesMode",True); > > > > PositionSize = MarginDeposit = 1; > > > > SetOption("AllowSameBarExit", True); > > > > SetTradeDelays(0,0,0,0); > > > > SetBacktestMode( backtestRegularRaw ); > > > > > > > > BuyPrice = C; > > > > SellPrice = C; > > > > > > > > MA1 = MA(C,5); > > > > MA2 = MA(C,25); > > > > > > > > Buy = Cross(MA1,MA2); > > > > Sell = Cross(MA2,MA1); > > > > > > > > From: [email protected] <mailto:amibroker%40yahoogroups.com> [mailto:[email protected] <mailto:amibroker%40yahoogroups.com> ] On Behalf > > Of Mike > > Sent: Thursday, 8 October 2009 7:55 a.m. > > To: [email protected] <mailto:amibroker%40yahoogroups.com> > > Subject: [amibroker] Re: Why raw signals different than actual trades? > > > > > > > > > > > > As alluded to by Mark, the default backtest behavior will only allow one > > position per symbol at a time. Also, your position size may be causing you > > to run out of funds, and your Max Positions setting may be preventing you > > from taking on more positions (if trading a portfolio of stocks). See the AA > > settings, SetPositionSize function, SetOption function. > > > > Mike > > > > --- In [email protected] <mailto:amibroker%40yahoogroups.com> <mailto:amibroker%40yahoogroups.com> , > > "fcee150206014" <xk9.xk9@> wrote: > > > > > > Hello, > > > > > > I've been trying to backtest some old ideas but I have a problem, the > > system recognizes all the raw signals but ignores more than half when doing > > actual trades. > > > > > > > > > > > > Thank you for your help. > > > > > >
