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Hi - If you are just concerned about today's value, you can try this (
untested ). If you need to do it correctly for the entire array, then off
the top of my head, you may need to rewrite it for a loop...
Steve
Lookback = 100;
RangePercent = 3;
LastClose = LastValue( Close );
RangeHigh = LastClose + (LastClose*(RangePercent/100));
RangeLow = LastClose - (LastClose*(RangePercent/100));
WithinRange = (Close <= RangeHigh) AND (Close >= RangeLow);
NoOfBars = Sum(WithinRange,Lookback);
Plot( NoOfBars , " Support Percentage", ParamColor( "Color", colorCycle ),
ParamStyle("Style") );
----- Original Message -----
From: "chorlton_c_hardy" <chorlton-c-hardy@xxxxxxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Friday, February 22, 2008 6:41 AM
Subject: [amibroker] Help with Coding Problem Please
> Hi All,
>
> Can anyone help out please, as I'm currently stuck with a coding
> problem and struggling to resolve it.
>
> What I want to do is calculate the number of previous bars (within
> the last 100bars) where the previous closes were within 3% of the
> CURRENT Closing Price.
>
> What I have so far is shown below. The code is not very elegant as
> I'm trying to keep it very simple in an attempt to find out where I'm
> going wrong.
>
>
> Lookback = 100;
> RangePercent = 3;
>
> RangeHigh = Close + (Close*(RangePercent/100));
> RangeLow = Close - (Close*(RangePercent/100));
>
> WithinRange = (Close <= RangeHigh) AND (Close >= RangeLow);
>
> NoOfBars = Sum(WithinRange,Lookback);
>
> Plot( NoOfBars , " Support Percentage", ParamColor( "Color",
> colorCycle ), ParamStyle("Style") );
>
>
>
> At the moment, when I plot this code the line remains at 100.00.
>
> I believe the reason for this is that for each previous bar, the same
> previous Close value is also referenced which results in the
> Rangehigh & RangeLow ALWAYS being either side of the corresponding
> close and therefore the WithinRange value ALWAYS being true, which is
> clearly not what I want :-(
>
> Consequently, can anyone suggest how I can resolve this as my coding
> skills are pretty limited.
>
> Thanks in advance,
>
>
>
> 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
>
>
>
>
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
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