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Re: DATA Discrepency BE AFRAID!!!



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Hey,

I KNOW ITS THE DATA.

Thanks

----- Original Message -----
From: "Timothy Morge" <tmorge@xxxxxxxxxxxxxxx>
To: "Ron" <ron560@xxxxxxxxxxx>
Cc: "Omega List" <omega-list@xxxxxxxxxx>
Sent: Tuesday, July 11, 2000 1:57 PM
Subject: Re: DATA Discrepency BE AFRAID!!!


> Read the post I sent again. The difference is in that 5 percent difference
of
> the data streams. You will be amazed--if you do the work by hand with a
> spreadsheet--what one tick here and there will do on indicators.
>
> It isn't the indicators--it's the data differences.
>
> I am not suggesting you become a discretion trader. I am suggesting you
should
> tear into the two data streams and see exactly what is different. The
choose
> one.
>
> Tim Morge
>
> Ron wrote:
>
> > Please read the email again!
> >
> > JeRRyWar Yes everything is exactlly the same on both TS machines. Other
than
> > the data off course!!!!!
> >
> > >Timothy Morge:
> > >Trading in the currency and S&P
> > >pits for any period of time there will give you a better feel for the
> > 'noise'
> > >contained in the data most of us use.
> >
> > I leave the feel factor to others on this list who are super humans with
> > amazing sixth feel sences. No Thanks.
> >
> > >You'll have to watch both data streams with your
> > >indicator and then choose which you trust and which is successful. This
may
> > be
> > >the lesson that shows you just how subjective most indicators are.
> >
> > Dont use indicators but love to play with them. And I am a system trader
so
> > I cant watch two feeds and would rather not trust anything other than my
> > fish keeping his mouth shout at all times.
> >
> > ----- Original Message -----
> > From: "JeRRyWar" <drwar@xxxxxxxxxxxx>
> > To: "'Ron'" <ron560@xxxxxxxxxxx>; "'Omega List'" <omega-list@xxxxxxxxxx>
> > Sent: Tuesday, July 11, 2000 1:20 PM
> > Subject: RE: DATA Discrepency BE AFRAID!!!
> >
> > > The difference most likely lies in the difference between the two
> > stochastic
> > > indicators and not the data. Try exporting the Quote.com data into
your
> > > other program and then compare.
> > >
> > > -----Original Message-----
> > > From: Ron [mailto:ron560@xxxxxxxxxxx]
> > > Sent: Tuesday, July 11, 2000 1:17 PM
> > > To: Omega List
> > > Subject: DATA Discrepency BE AFRAID!!!
> > >
> > >
> > > Please consider the following example:
> > >
> > > DTN Feed_IBM 60min_Stochastic Crossover
> > > A crossover buy is generated using DTN data.
> > >
> > > Quote.com Feed_IBM 60min_Stochastic No Crossover
> > > No crossover in Quote.com data using same stochastic parameters.
> > >
> > > What do you do? Both feeds have been working fine all day and tick
counts
> > > are within 95% of each other but obviously there is a discrepancy in
the
> > > data between the two feds. Its very hard to get to independent feed to
> > match
> > > data exactly, especially on the lower time frames.
> > >
> > > Since no two feed are the same does it make sence to test systems on
one
> > > data source and trade it using another. No matter how reliable your
data
> > > source is for historical data there is no guarantee that your real
time
> > data
> > > matches the intrinsic characteristics of your historical data source.
> > Infact
> > > most often the performances will NOT be the same for the same system.
This
> > > highly limits the type of systems that can be traded in real-time and
> > tested
> > > historically. SO BE AFRAID!!!
> > >
> > > This data problem has been bugging me for a long time and unless you
have
> > > direct feeds from exchanges and full control over the data
distribution
> > and
> > > filtering process you may be trading based on artificially adjusted
data.
> > >
> > > So where do you draw the line.
> > >
> > > All comments appreciated. Thanks
> > >
> > >
>
>