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Hi - It can be done easily without any loops. Here is example for gapup's.
Filter = GapUp()
AddColumn( Close, "Close" );
Load the code into AA, select your stock or list, select "last n quotes" and
fill in 15, hit Explore
Steve
----- Original Message -----
From: "bestbobleonard" <bestbobleonard@xxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Saturday, November 11, 2006 10:58 AM
Subject: [amibroker] Newbie Problem Looping the last 15 days. It maybe me.
Maybe AMI broker.
> Hi,
>
>
> I want to back test the last 15 days (ONLY) for some data anomalies
> like gapup, etc. I have a simple (STARTER!) function for this
> below. I'm beginning to think I don't see array processing
> correctly.
>
> I did read the manual on arrays and it's not clear on some points so
> finally I did the following:
>
> Filter = (Close[0] > 4.0) ;
>
>
> AddColumn(Close, "Close");
> AddColumn(Close[0], "Close0");
> AddColumn(Close[1], "Close1");
> AddColumn(Close[2], "Close2");
>
>
> Which gets:
> Ticker Date/Time Close close1 close2 close3 close4
> JCP 11/9/2006 79.55 53.75 52.21 53.40 54.18
>
>
> Clearly, I'm not getting correct elemens of the array. The values
> shhould all be it ther $70's. Maybe I misunderstood the
> Manual but the page on arrays is skimpy and poorly written.
>
>
> Maybe someone can just point me to some better
> examples/documentation.
>
> I read it that "close[0] equals day1 in his tables??"
>
> I'm using QP3.
>
> Or maybe show me what's wrong with the below function.
>
> Thanks for Any suggestions,
> BobLenard (programming newbie)
>
>
> // *************************
> ////
>
>
> function Dropper(period)
> {
> yesno = 0;
>
> global dropdelta;
>
> dropdelta[0] = 0; //initaliation & needed for debug!
>
> for (i = 1; i <= 15; i++)
> {
> dropdelta [i] = High[i] - Low [i +1 ] ;
> }
>
>
> for (j = 1; j <= period; j++)
> {
> if ( dropdelta[ j ] < 0)
> yesno = 1;
> }
>
> return yesno;
>
> }
>
>
> gotadrop = Dropper(15);
>
>
> Filter = (Close[0] > 4.0) ;
>
> AddColumn(Close, "Close");
>
> AddColumn(dropdelta[1], "dtest1");
>
> AddColumn(dropdelta[2], "dtest2");
>
> AddColumn(dropdelta[3], "dtest3");
>
> AddColumn(dropdelta[4], "dtest4");
>
>
>
>
>
>
>
> 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 NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> http://www.amibroker.com/devlog/
>
> For other support material please check also:
> http://www.amibroker.com/support.html
>
> Yahoo! Groups Links
>
>
>
>
>
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