Hello, The plot may change if the currently selected symbol has data holes or history length different than composite.
See the COMMENT to the docs on Foreign funciton http://www.amibroker.com/f?foreign for more details Best regards, Tomasz Janeczko amibroker.com ----- Original Message ----- From: "dallen2507" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Sunday, July 06, 2008 4:28 AM Subject: [amibroker] ATC question > TJ > I want to take the family average of a watchlist and then plot the > family average and explore the results. I'm using the following AFL. > > // Hedge_Only.afl > > // 1. (Task == 1) In AA point to Watchlist to Hedge and Scan with n > = 1 > // 2. (Task == 2) Set to current symbol for plot and explore > > Task = Param("Task",1,1,2,1); > > if(Task == 1) // point to watchlist for fam average to hedge, set > range n = 1, and Scan > { > Buy = 1; Sell = Short = Cover = 0;// need for scan > Change = ROC(C,1)/100; > AddToComposite(Change,"~Change","X"); > AddToComposite(1 , "~Counter","X"); // No of Stks > } // end of Task == 1 > > if(Task == 2) // Hedge and Plot and Explore > { > FamChange = Foreign("~Change","X"); > NoStks = Foreign("~Counter","X"); > NoStks = IIf(NoStks > 0,NoStks,1); > AvgChange = FamChange/NoStks ; > CumSum =Cum(log(AvgChange + 1)); > FamAvgL = exp(CumSum); // fam avg of long watchlist for hedging > > Plot(FamAvgL, "BH FamAvg",colorBlack,styleLine|styleThick ); > > Filter = 1; > AddColumn(FamAvgL,"BH "); > > } // end of Task == 2 > > After scanning the watchlist using task == 1, I switch to Task == 2 > and explore. > The problem is the plot changes when I change the current symbol. > WHY? > How am I suppose to do this? > Dan > > > > ------------------------------------ > > 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 > > >
