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you could try something like this
UpGap = ValueWhen( DateNum() != Ref( DateNum(), -1 ), GapUp() ); //gap
at first bar of day
UpOpen = ValueWhen( DateNum() != Ref( DateNum(), -1 ), O ); //open at
first bar of day
UpClose = ValueWhen( DateNum() != Ref( DateNum(), -1 ), Ref(C,-1) );
//close at last bar of previous day
Filter = upgap;
AddColumn(upgap,"gap",1);
AddColumn(Upclose ,"close",1.3);
AddColumn(UpOpen ,"open",1.3);
On 6/12/05, Mark Keitel <mkeitel@xxxxxxxxxxxxxxx> wrote:
>
>
> I am new to the group and to Amibroker
>
> Have been using Telechart2005 for a while and now Amibroker
>
>
>
> My question is
>
>
>
> Is there a afl script for one to scan/explore for "gappers" at markets
> open?
>
> Would like to be able to scan the whole stock data base for that
>
>
>
> Thank you
>
>
>
>
>
> Mark
>
>
>
> 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
>
>
>
>
> ________________________________
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>
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--
Cheers
Graham
http://e-wire.net.au/~eb_kavan/
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