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Hello,
Volume is stored as 32 bit integer therefore it is 2^31
7 significant digits in IEEE format do not mean that you can not represent
higher numbers.
Actually range is 10^37 (100000000....000 (37 zeros))
So there is no problem.
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: "OzFalcon" <OzFalcon@xxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Sunday, March 23, 2003 2:05 PM
Subject: Re: [amibroker] exporting to txt file modified data
> Hi Tomasz,
> re: "32 bit single precision IEEE floating point is limited to 7
> significant digits accuracy."
>
> Is Volume handled with 7 digits as well?
> And could this have some serious repercusions when doing calculations with
> volume?
>
>
> Eg. The volume is already 8 digits long for 13,14,17,18 etc....
> AMP (new)
> AMP 21/03/2003 7.56 7.6 7.7 7.52 3585067
> AMP 20/03/2003 7.64 7.79 7.81 7.56 6236905
> AMP 19/03/2003 7.77 7.62 7.79 7.5 7436849 0
> AMP 18/03/2003 7.58 7.55 7.62 7.44 10077051 0
> AMP 17/03/2003 7.09 7.45 7.5 7.05 11003351
> AMP 14/03/2003 7.25 6.95 7.33 6.85 24879902
> AMP 13/03/2003 6.45 5.9 6.56 5.88 17178985
> AMP 12/03/2003 6.16 6.03 6.2 5.93 7849209 0
> AMP 11/03/2003 5.92 6.07 6.11 5.9 9436115 0
> AMP 10/03/2003 6.3 6.49 6.51 6.28 4790695 0
> AMP 7/03/2003 6.51 6.7 6.7 6.51 6175581 0
> AMP 6/03/2003 6.76 6.75 6.87 6.75 3858491 0
> AMP 5/03/2003 6.76 6.75 6.94 6.7 5640497 0
> AMP 4/03/2003 6.9 6.68 6.93 6.62 9207506 0
> AMP 3/03/2003 6.77 6.98 7.07 6.6 11691944 0
> AMP 28/02/2003 7 7.32 7.41 6.96 15187823 0
> AMP 27/02/2003 7.25 7.51 7.58 7.2 16848562 0
> AMP 26/02/2003 7.71 7.78 7.88 7.45 12850752 0
>
>
> At 10:21 AM 23/03/2003 +0100, you wrote:
> >Graham,
> >
> >As Tradestation and Metastock, AMiBroker uses 32 bit IEEE floating point
> >representation
> >for data arrays. 32 bit single precision IEEE floating point is limited
to
> >7 significant digits accuracy.
> >
> >20030314
> >is EIGHT digits therefore the last one (least significant) eighth digit
> >can not be represented accurately.
> >
> >This is the reason why DateNum returns YYYMMDD and not YYYYMMDD
> >
> >Solution for your export problem:
> >Go to Windows Control panel - Regional settings and change the date
format
> >to one accepted by Metastock
> >and then re-run exploration
> >
>
>
>
>
> Send BUG REPORTS to bugs@xxxxxxxxxxxxx
> Send SUGGESTIONS to suggest@xxxxxxxxxxxxx
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> (Web page: http://groups.yahoo.com/group/amiquote/messages/)
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>
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>
>
>
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