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Fred,
I use the Medved Quote Tracker plug-in. I understand what you are saying,
however the data clearly has that last bar -- I realize that the bell rings
at 4:00 PM and no trading occurs in actuality AFTER that time. There remains
the problems I stated concerning that last data bar or point that is
"labeled" 4:00 PM. I just want to get rid of it and the resulting problems.
Any suggestions?
George
----- Original Message -----
From: "Fred" <fctonetti@xxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Tuesday, April 15, 2003 12:28 PM
Subject: [amibroker] Re: DATA and INDICATOR display problem -- the 4:00 PM
data point -- TOMASZ
> George,
>
> I don't know if the below applies to you or not but I broached this
> topic some time ago from a different perspective ...
>
> From an intraday perspective there is NO valid data after 3:59:59.
> In 60 minute bars the last one should begin at 3:30:00 and end at
> 3:59:59
>
> Everything from 4:00:00 on in cash indicies and stocks can not be
> seen during the "market day" nor used for same day trading.
>
> By the way what vendor are you using ?
>
> Fred
>
> --- In amibroker@xxxxxxxxxxxxxxx, "George Loyd" <grloyd@xxxx> wrote:
> > The 4:00 PM data point consists of 1 min of trades if you are not
> using tick
> > data for intraday trading. On a 1 min chart this is as it should
> be. However
> > as the periodicity of the chart increases, the amount of data
> contained
> > within each bar or data point increases EXCEPT for the 4:00 PM
> point which
> > remains constant at 1 min of trade data. On a 30 min or 60 min
> chart the
> > 4:00PM data bar still depicts 1min of trades and still occupies one
> data
> > point. A normal trading day using 60 min charts has 7 bars or data
> points
> > (including 1 bar for the first 1/2 hour) but in AmiBroker there are
> 8 bars
> > or points including the 4:00 PM bar or data point, so 12.5% of 60
> min chart
> > data points have ONLY 1 min of data within them.
> >
> > My problem is: won't this cause inaccuracies in chart displays and
> data
> > calculations, especially numeric calculations (RSI, ADX, Stoch,
> etc)? Some
> > bars will incorporate 60 times as much data? Has this issue been
> addressed
> > before? I can't find it anywhere. Is there a way to include the
> 4:00 PM data
> > into the data for the previous period? I thought about just
> stopping the
> > data at 3:59 PM but there is often significant volume and some
> degree of
> > price movement in that final 1 min of trading. Other suggestions?
> >
> > Thanks.
> > George Loyd
> >
> >
> > ---
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>
>
>
> Send BUG REPORTS to bugs@xxxxxxxxxxxxx
> Send SUGGESTIONS to suggest@xxxxxxxxxxxxx
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>
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