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to sell after 10 days from entry use Applystop is the easiest
you can also use
buy=exremspan(BUY,10);
sell=ref(buy,-10);
Cross gives a value of 0 or 1 if false or true. Summing the cross over
anumber of bars gives the number of times that cross was true for that
period.
An alternative to Sum(......., 5 ) would be to use
barssince( Cross( EMA(Close,20 ),EMA(Close, 50) ) ) < 5
On 11/8/05, thorstef2003 <thorstef2003@xxxxxxxxx> wrote:
> Thanks Terry! Could you explain a bit what Sum(Cross (EMA(Close,
> 20 ),EMA(Close, 50),5));does?
> Still need to know how to automatically sell after 10 days?
> Also, any tutorials on using VB from AFL?
> --- In amibroker@xxxxxxxxxxxxxxx, "Terry" <MagicTH@xxxx> wrote:
> >
> > Try:
> > Buy=Cross (EMA(Close, 10 ),EMA(Close, 20)) AND
> > Sum(Cross (EMA(Close, 20 ),EMA(Close, 50),5));
> > --
> > Terry
> > -----Original Message-----
> > From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx]
> On
> > Behalf Of thorstef2003
> > Sent: Monday, November 07, 2005 11:42
> > To: amibroker@xxxxxxxxxxxxxxx
> > Subject: [amibroker] Double EMA crossover, with a difference
> >
> > I want to backtest a double EMA crossover.
> >
> > Buy=Cross (EMA(Close, 10 ),EMA(Close, 20)) AND
> > Cross (EMA(Close, 20 ),EMA(Close, 50));
> >
> > except that I would like to check if the 2nd crossover has occurred
> > anytime during the previous 5 days. It is non simultaneous.
> > 1 How do I check for 20-50 crossABOVE on any day upto 5 days ago?
> > 2 How to sell automatically after 10 days are over?
> > Found a danningham.afl that uses vbscript. I'm pretty OK with VB so
> can
> > anyone point me to a tutorial on using VB from AFL?
> >
> >
> >
> >
> >
> >
> > 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
>
>
>
>
>
>
>
--
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
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