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At 02:09 AM 8/17/00 +0200, pierre.orphelin wrote:
>This is a low budget and high consuming CPU solution vs the real thing.
>Anyone who use intraday ASCII data may know that this format take a lot of
>time to load.
>More, each time you close / reopen your workspaces, you restrart from
>scratch, ie that you reload the data from a non optimized database ( ASCII),
Right BIG ASCII files can take TS a bit to load. He did mention that
Metastock format was also available. I'm not familar with its details, but
I imagine pretty much every format is a lot more efficient than
ASCII. Perhaps there is also a feature to limit the size of the files (ie
throw out old data as new comes in).
>rebuild the ALL charts ( nothing remains in memory or on the HD excepted
>the workspace file structure) and recalculate ALL the indicators and
>stategies from the begining!
Correct -- as he mentioned the time involved depends on the complexity of
your systems and how much history it requires.
I don't expect he is pushing this for people tracking 100's or 1000's of
symbols in real-time.
>If this solution was made to avoid 100% CPU usage ( what is not the case
>in real world with the SP Comstock subserver that I use), this is a stupid
>solution.
>When TS2000 updates the charts it takes microseconds of CPU.
>Only the last bar is updated and in no case we reload the workspace.
>
>This solution has probably one advantage: to collect historical ASCII
>intraday data.
>That's aside, it's not a professional solution vs the real Omega server.
What does the TS server do for TS4 and TS2000 if you're computer crashes
(loose data feed) or your data feed blanks out for a while?
It sounds to me like this is the real reason to use Tradeworks
solution. I'm assuming that as soon as your computer is back, QCollector
will update the data hole the next refresh and you're back as if nothing
happened. How do you refresh that data with other currently available
solutions? I was under the impression that this was the feature that most
data servers were missing these days.
Also you can limit your incoming data to only what you need to actively
trade and download the rest of your data for history purposes automatically
during the off trading hours.
Though not a "beautiful" solution it sounds like a great place to start if
you have a relatively simple system/indicators and are tracking just a few
symbols. ...and you don't want to make data management a full-time
job. With a free trial and nominal investment, you can't hardly go wrong
(I'm in no way affiliated, blah blah blah - just heard good things about
his first product).
Does anyone know how much would it cost with other solutions to get a data
feed and server that automatically filled in holes after a crash or data
interruption?
Dave
>PO
>
>
>----- Message d'origine -----
>De : David Wieringa <david_wieringa_ml@xxxxxxxxxxxxxxxx>
>À : <omega-list@xxxxxxxxxx>
>Envoyé : mercredi 16 août 2000 22:17
>Objet : RE: Tradeworks Software
>
>
> > At 09:14 AM 8/16/00 -0700, you wrote:
> > >Hi, let me clarify what this is all about.
> > >
> > >Tradeworks Software has two products, QCollector and OmegaUpdater, that
> > >when used together simulate a real-time data feed for TradeStation v4.0
> >
> > "Simulate" being a key word here. In an "idealistic sense" it sounds like
> > a bit of a kludge, but a very interesting idea. Given the current set of
> > tools on the market, it sounds like a great way to go to get up and
> running
> > in a simple and low budget manner. Having the data managed like this
> could
> > save a lot of time and frustration.
> >
> > My brother has used QCollector before and really liked it.
> >
> > >or SuperCharts EOD, using the Quote.com internet data feed. The way it
> > >works is as follows, and some of this is quoted from a message I posted
> > >to another mail list to answer a similiar question:
> > >
> > >Instead of creating your charts from data in the Omega tick database,
> > >you build them from data files on disk (Ascii or MetaStock format - this
> > >is easy to do with TradeStation.) QCollector updates these data files
> > >with the real-time data from QFeed, on the interval you specify, which
> > >can be as often as every ten seconds. On each update, OmegaUpdater
> > >instructs TradeStation to reload the workspace(s) you are updating, and
> > >the systems and studies you have applied to your charts are
> > >re-calculated as the charts re-load their data. The amount of time this
> > >takes depends on how powerful your computer system is, how many charts
> > >you are watching, how computationally intensive your analysis techniques
> > >are, and so on. It is typically just a few seconds.
> > >
> > >The way I use this combination in my own trading is to run TradeStation
> > >in the background with my own custom indicators with alerts set, and one
> > >intraday trading system running on the EMini S&P. I follow real-time
> > >charts with QCharts from Quote.com, which IMO has better basic charting
> > >than TradeStation and much, much better quote sheets. But since QCharts
> > >lacks the advanced programming capabilities of TradeStation, I have
> > >TradeStation alert me when my system is signalling a trade, and when
> > >certain other conditions develop in the market.
> > >
> > >A few other points:
> > >
> > >* The Omega Server is not required, so your system is not burdened with
> > >the server's high (up to 100%) CPU usage.
> > >* You have data on demand. You can chart any of the thousands of symbols
> > >offered by Quote.com without having to first add the symbol to your
> > >server portfolio and collect hours of data for it.
> > >* There are no "holes" in your data or gaps in your charts, because you
> > >don't have to be connected to a data feed all the time gathering ticks.
> > >QCollector manages your data in separate files for each security and
> > >keeps them updated.
> >
> > Very nice.
> >
> > >* QCollector is also a full featured historical data downloader that
> > >will bring all of your data files up to date with the click of a button.
> > >Maintain your own database of intraday, tick, and EOD data.
> > >
> > >Free trial versions of QCollector and OmegaUpdater are available for
> > >download from the Tradeworks Software web site (link below) so you can
> > >see exactly how this works. I would suggest creating a new MetaStock
> > >data format portfolio in QCollector and adding several of the trial
> > >symbols to it to get started (ADBE, ADSK, INTU, KO, MCD, SUNW, NOVL,
> > >GBLX, TRAN, COMPX, VLE.X, or XAU.X). Running QCollector requires a
> > >subscription to the QCharts or QFeed package from Quote.com
> > >(http://classic.quote.com/reg/reg/layout/start.html - your browser must
> > >accept cookies for this link to work).
> > >
> > >Regards,
> > >
> > >Dave DeLuca
> > >Tradeworks Software
> > >http://www.mechtrading.com
> >
> > david_wieringa@xxxxxxxx
> > Software Engineer (contractor)
> > Scottsdale, AZ / Grand Rapids, MI
> >
> >
> >
david_wieringa@xxxxxxxx
Software Engineer (contractor)
Scottsdale, AZ / Grand Rapids, MI
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