I was asking about the part where you said "I am trying to pass the string". Have you tested THAT?
And I'm not "saying", I'm "asking". d > -----Original Message----- > From: [email protected] > [mailto:[EMAIL PROTECTED] On Behalf Of PKJR > Sent: Sunday, June 18, 2006 4:03 PM > To: [email protected] > Subject: Re: [amibroker] Adding Column to Backtester > > Dingo - to access Foreign I would need to create the > composite index with AddToComposite and I have to add the > result of the O, H, L, C, V, I - as far as I know none of > them will accept string like "NG20040302".. > > small test - I certainly could write it when I get to this > part later on today but that would be against the info > provided in help files but if you say otherwise I will try it.. > > > > > On 6/18/06, dingo <[EMAIL PROTECTED]> wrote: > > > Have you written a small test program and tried it? > > > > > > d > > > > > > > -----Original Message----- > > > > From: [email protected] > > > > [mailto:[EMAIL PROTECTED] On Behalf Of PKJR > > > > Sent: Sunday, June 18, 2006 11:11 AM > > > > To: [email protected] > > > > Subject: Re: [amibroker] Adding Column to Backtester > > > > > > > > tks Graham - I am trying to pass the string so I guess > the Foreign > > > > might not work, right? > > > > > > > > On 6/18/06, Graham <[EMAIL PROTECTED]> wrote: > > > > > You have 2 ways to add normal values to the advanced code > > > > as far as I > > > > > ahve worked out Use staticvarset and staticvarsettext in > > > > your normal > > > > > code and then the gets in the advanced code The other is to > > > > > create composites of the values you want to transfer to the > > > > advanced code in > > > > > your normal formula. You can then use the foreign to > pull this > > > > > data into the advanced code. This may also require > the use of a > > > > > function that tomasz provided for finding equity at a > certain date. > > > > Here is a > > > > > part of the code, this is a astarting point only, > youi will need > > > > > to deternine how to actually use it > > > > > > > > > > > > > > > from response by Tomasz............................ > > > > > /*Hello, > > > > > > > > > > I have been asked how to access portfolio Equity to calculate > > > > > some trade statistics in new portfolio backtester > interface, so > > > > > I have modified the code from example 3, to show you how. the > > > > > calculations remain the same, all I did it to add 2 extra > > > > > columns with per-trade > > > > > metrics: "equity at entry" AND "Risk as % of equity at entry". > > > > > > > > > > The code follows. Newly added lines are marked with // ADDED > > > > > LINE comment. > > > > > Refer to http://www.amibroker.com/newsletter/01-2005.html > > > > for more details. > > > > > > > > > > /* First we need to enable custom backtest procedure and > > > > > ** tell AmiBroker to use current formula */ > > > > > > > > > > SetCustomBacktestProc(""); > > > > > > > > > > function FindEquityAtDateTime( eq, dt, Value ) { > > > > > found = -1; > > > > > for( i = 0; i < BarCount AND found == -1; i++ ) > > > > > { > > > > > if( dt[ i ] == Value ) found = i; > > > > > } > > > > > > > > > > return IIf( found != -1, eq[ found - 1 ], Null ); } > > > > > > > > > > /* Now custom-backtest procedure follows */ if( > Status("action") > > > > > == actionPortfolio ) { > > > > > bo = GetBacktesterObject(); > > > > > > > > > > bo.Backtest(1); // run default backtest procedure > > > > > > > > > > // ADDED LINE > > > > > dt = DateTime(); > > > > > > > > > > // ADDED LINE > > > > > // at this stage (after Backtest() call) portfolio equity > > > > symbol is updated > > > > > // so we can use it to obtain current values > > > > > eq = Foreign("~~~EQUITY", "C" ); > > > > > > > > > > // iterate through closed trades first > > > > > for( trade = bo.GetFirstTrade(); trade; trade = > > > > bo.GetNextTrade() ) > > > > > { > > > > > // ADDED LINE > > > > > EquityAtEntry = FindEquityAtDateTime( eq, dt, > > > > trade.EntryDateTime > > > > > ); } } > > > > > > > > > > > > > > > > > > > > -- > > > > > Cheers > > > > > Graham > > > > > AB-Write >< Professional AFL Writing Service Yes, I write > > > > AFL code to > > > > > your requirements http://e-wire.net.au/~eb_kavan/ab_write.htm > > > > > > > > > > > > > > > On 18/06/06, PKJR <[EMAIL PROTECTED]> wrote: > > > > > > Hi All - small dilemma here.. I would like to add a > column to > > > > > > the backtester results..I know I can us a custom metric that > > > > is derived > > > > > > from backtester results and add a column this way but how > > > > > > about adding a column that contains data not derived from > > > > > > backtester object but rather from an array in your > main AFL code? > > > > > > > > > > > > is there a way to pass an outside array to custom > > > > backtester object? > > > > > > BTW my custom backtesting procedure is in a > separate AFL file > > > > > > > > > > > > Paul > > > > > > > > > > > > > > > > > > > > > > > > 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 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 other support material please check also: > > > > > http://www.amibroker.com/support.html > > > > > > > > > > > > > > > Yahoo! Groups Links > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > ------------------------ Yahoo! Groups Sponsor > > > > --------------------~--> Something is new at Yahoo! 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