|
PureBytes Links
Trading Reference Links
|
Hello Trader and the others,
Thank you for your very valuable suggestions. The variables
you describe will certainly make writing systems easier.
I promise to add them in the next bigger release (3.7)
Best regards,
Tomasz Janeczko
===============
AmiBroker - the comprehensive share manager.
http://www.amibroker.com
----- Original Message -----
From: <traders10@xxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Wednesday, June 06, 2001 9:51 PM
Subject: [amibroker] Position functions
> Let me start by saying I realize I am spoiled by the large toolbox of
> functions in TradeStation. However some of them are really quite
> useful. I will try to explain why along with my questions.
>
> While I am focusing on TS functions there may be a way to do these
> things in AB and I may not understand how to apply the AB code.
> Please help me out if that is the case.
>
> 1. MarketPosition: -1 short, zero out, +1 long This test is used to
> determine how your exit or stop will be applied. ie: if long and
> exit condition = true, then sell at market/stop...but, if you were
> short you want to buy instead.
>
> 2. EntryPrice: when the trading system buys or shorts you want to
> set stops based on this price. I have seen some of the workarounds
> the MetaStocks guys have to use...ugly
>
> 3. EntryDate: when the trading system buys or shorts you may want to
> be able to exit based on the number of days in the trade. Also the
> entry date is important for exit tests...see below
>
> 4. BarsSinceEntry: There is a BarsSince Fn in AB that might work for
> this if I also know the entry date, but this Fn is a cleaner
> solution. example: if I want to exit X% or Y ATRs down from a recent
> high it works much better to apply this test only if I have a
> position in the stock. If the stock is in a slow decline the
> lookback period may need to be a few months long.
>
> Without the BarsSinceEntry function, if I set the lookback period for
> 50-100 bars it is possible to have the desired exit, then a
> legitimate new entry followed by a false exit caused by the condition
> that initiated the first exit, maybe 70 days ago, that should have no
> valid impact on this new trade.
>
> Testing for a period of BarsSinceEntry completely solves that problem.
>
> I am sure I'll have some more of these soon as I continue to explore
> AB. BTW, the reason I am working in AB is the portfolio backtesting
> capability which TS does not have. :)
>
> Cheers
> Trader
>
>
> PS: different topic: Can the default field width for entry/exit dates
> in the backtester results panel be made wider to display mm/dd/yyyy
> properly?
>
> PPS: Peter Carr, thanks for the repost of your correlation Fn.
>
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
|