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Jim, normally this crowd is fairly placid and well behaved. I guess the
keeper is late feeding them today. :-)
In answer to your query, have you checked it to see if it works in an
exploration.
I have used formula to determine the buyprice myself and normally works ok.
Best way is to check the results yourself as below as example.
Filter = 1;
Addcolumn(Buy or Sell,"BorS",1);
Addcolumn(L,"L",1.2);
Addcolumn(buystop,"BS",1.2);
Addcolumn(buyprice,"BP",1.2);
Addcolumn(H,"H",1.2);
Addcolumn(sellstop,"SS",1.2);
Addcolumn(sellprice,"SP",1.2);
Another thing to consider if you are using Buyprice for something else is
that you can often get additional Buy signals before an Sell signal arrives.
This will have the effect of resetting your prices used for exits as it will
take that new buy signal price. To remove this effect use
Buy = Exrem(Buy,Sell);
This will remove the surplus unwanted buy signals.
Cheers,
Graham
http://groups.msn.com/ASXShareTrading
http://groups.msn.com/FMSAustralia
-----Original Message-----
From: jwilsonp2a [mailto:j1wilson@xxxxxxxxxxx]
Sent: Tuesday, 28 October 2003 2:15 PM
To: amibroker@xxxxxxxxxxxxxxx
Subject: [amibroker] Re: trailing stop question from new user
Sheesh, this is a tough crowd here.
I wasn't even referring to the trailing stop issue from earlier, I
just wondered why Tomasz said I couldn't do something that was
clearly stated as possible in the user guide.
Thus my comment about my possibly missing something obvious.
I have only had the software a few days, OK?
Jim
--- In amibroker@xxxxxxxxxxxxxxx, "Phsst" <phsst@xxxx> wrote:
> Jim,
>
> Yes, you have missed something obvious here...
>
> Tomasz told you twice that in order to accomplish what you want,
then
> you must use something similar to the example looping code he
posted
> in his first response.
>
> And I made a post with the Subject line of "Trailing Stop Example",
> that gave you an even closer solution to what you want to
accomplish.
>
> But you don't seem to want follow the suggested approach, so you
> continue to try to fit a square peg into a round hole.
>
> In order to backtest a trailing stop condition as you described,
you
> *MUST* resort to the looping approach that was presented to you.
There
> is no other choice based upon the current capabilities of AB.
>
> I can tell you from experience that if you don't understand why
this
> is so, then there is something fundamental that you don't
understand
> about AB AFL... and in that case then go back and make a 2nd or 3rd
> pass thru the AFL Tutorial.
>
> Regards,
>
> Phsst
>
> --- In amibroker@xxxxxxxxxxxxxxx, "jwilsonp2a" <j1wilson@xxxx>
wrote:
> > Tomasz,
> >
> > I understand your first point about Volatile=True. As far as
> > modifying BuyPrice and SellPrice, I took those two lines:
> >
> > BuyPrice=Max(BuySTOP,Low);
> > SellPrice=Min(SellSTOP,High);
> >
> > directly from the user guide. Am I missing something obvious
here?
> >
> > Thanks, Jim
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