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Quite.
It is the subjective mind that puts things in perspective (measures
the value and meaning of them) e.g. we know what beauty is but we
can't rationalize it.
I claim that the subjective plays a big part in successful trading
(a.k.a trading psychology).
That's a book all on its own, although Aronson did a passing job on
the basics in EBTA (for a tech guy!)
brian_z
--- In amibroker@xxxxxxxxxxxxxxx, "Howard B" <howardbandy@xxx> wrote:
>
> Greetings all --
>
> Let me add my voice to those suggesting that you reconsider leaving
Quotes
> Plus.
>
> I am a subscriber to QP for both EOD and RealTime.
>
> I have had difficulties with QP's billing department. Gary got them
> straightened out for me.
>
> I am satisfied with the quality of the data.
>
> Consistency is worth a lot. Most of my research and most of my
trading is
> done based on systems that I have developed using QP data. If I
were to
> change to another vendor, I would begin to notice differences.
That would
> concern me, and I would spend way too much time deciding whether I
needed to
> be worried or not. In the end, my choices would be to redo a great
deal of
> research, or go back to QP to resolve the differences.
>
> Thanks,
> Howard
>
> On Feb 16, 2008 2:01 AM, brian_z111 <brian_z111@xxx> wrote:
>
> > Paul,
> >
> > I can see that you are a technician.
> > I wonder how that translates into your trading style?
> >
> > I don't know if you will appreciate what I have been implying.
> >
> > The data from the exchanges is not absolutely correct (although I
> > agree with Bill that we should treat it as if it is).
> > This is a 'construct of convenience' that helps us to avoid the
> > uncomfortable fact that objective analyze has its limits and
starts
> > to breakdown at the edges.
> >
> > While we all say we are objective traders we aren't.
> > Subjectivity plays its part because it is 50% of our makeup.
> > After all of the analysis is down it is the feel we have for the
> > trade that allows us to continue in despite a bad tick or two.
> >
> > If our subjective capabilities weren't a match for our objective
> > capabilities we wouldn't be able to trade at all.
> >
> > brian_z
> >
> >
> > --- In amibroker@xxxxxxxxxxxxxxx <amibroker%
40yahoogroups.com>, "Paul Ho"
> > <paultsho@> wrote:
> > >
> > > One problem for yahoo data for Australian stocks is that price
is
> > only
> > > quoted down to 2 decimal place only. In real life, 3 decimal
place
> > is quoted
> > > at the exchange.
> > >
> > >
> > > _____
> > >
> > > From: amibroker@xxxxxxxxxxxxxxx <amibroker%40yahoogroups.com>
[mailto:
> > amibroker@xxxxxxxxxxxxxxx <amibroker%40yahoogroups.com>]
> > On Behalf
> > > Of brian_z111
> > > Sent: Friday, 15 February 2008 11:38 PM
> > > To: amibroker@xxxxxxxxxxxxxxx <amibroker%40yahoogroups.com>
> > > Subject: [amibroker] Re: New EOD data feed other than Quotes
Plus
> > >
> > >
> > >
> > > Ara,
> > >
> > > For the sake of sharing information - to save people wasted
time:
> > >
> > > > I know many are willing to to do a lot of work in order to use
> > free
> > > >data from Yahoo or add fundamenttal info from Yahoo.
> > >
> > > It's no work at all.
> > > Yahoo and Yahoo current fundamentals are integrated with
AmiQuote >
> > AB
> > >
> > > >>I have not tried it, but my impression has been that what you
get
> > > >>is what you pay for.
> > >
> > > Yahoo data is not free - it is paid for by Yahoo (bought from
> > > reputable companies) from revenue from ads - it is distributed
for
> > > free to attract users to the site who then buy things via the
ads
> > (I
> > > sometimes do).
> > >
> > > >I would rather pay a reasonable fee and get a reliable product.
> > >
> > > How do we know that our data products are quality? - because the
> > > provider told us so?
> > >
> > > How can we check data and how many do?
> > > It is not so easy to check data.
> > >
> > > As I suggested to Barry the other day - we can go to Yahoo,
> > download
> > > raw, or fully adjusted, get dividend info, get split info and do
> > our
> > > own checks on Yahoo in the same way we can do that for any other
> > > provider. I have done one or two here and there and I haven't
found
> > > anything alarming to me. If I did I would then work around that.
> > >
> > > What we can't get from Yahoo is event adjusted data without
> > dividend
> > > adjustment - people who want that have to get it elsewhere.
> > >
> > > Also, sadly, for longer term traders, more error is introduced
into
> > > backtesting by using data without div adjustment than errors
within
> > > Yahoo's data (I only say that to help people).
> > >
> > > IMO - first we should know what our trading style is, second we
> > > should have a strategy in mind and then third we should buy data
> > that
> > > will give us the best chance to analyze past performance of that
> > > strategy (in my case that means a few different types of data).
> > >
> > > As you know I could give a couple of pages more in support of
> > traders
> > > taking a more flexible and proactive attitude to their data but
I
> > > would be better to do that at the UKB.
> > >
> > > One example:
> > >
> > > I recently developed a very promising new system on holiday -
just
> > > before walking out the door to catch the plane I copied a
complete
> > AB
> > > directory from an XP machine and dumped it on a Vista laptop
> > > (naughty, naughty) - I dumped all the old databases to get the
size
> > > down and only took a copy of Jim's US Yahoo database (I wanted
div
> > > adjusted data for EOD backtesting).
> > >
> > > I managed to get some good work done.
> > >
> > > When I got back I then carried on towards testing in intraday
data
> > > from another provider and so far it is performing exactly as
tested
> > > on Yahoo (only better) - I am using intraday to finesse the
entries
> > > and exits that I couldn't finesse in EOD data. The trades
average 2-
> > 3
> > > days round trip.
> > >
> > > Also when it is ready to trade I will be totally familiar with
it
> > > after thousands of tests etc and I will see straight away if
> > > something is odd when I start going to the brokers (who also
has a
> > > different source for data).
> > >
> > > Also consider that the so-called differences in data is a bit
of a
> > > myth. In Australia there is only one exchange - they have a
> > monopoly
> > > on the data. They do some filtering of the tick data themselves
> > > before releasing it to their providers so how different can it
be.
> > >
> > > The only differences in data in Australia that can occur are
from
> > a)
> > > extra filtering or b) event adjustments.
> > >
> > > At the prices I don't think too many here are doing to mucn of
a)
> > and
> > > b) is checkable.
> > >
> > > Also, as we have seen in a recent article, bad tick data isn't
the
> > > end of the world at the EOD level.
> > >
> > > In fact EOD traders can tolerate quite a bit of error and still
win
> > > the day.
> > >
> > > brian_z
> > >
> > > --- In amibroker@xxxxxxxxx <mailto:amibroker%40yahoogroups.com>
> > ps.com, "Ara
> > > Kaloustian" <ara1@> wrote:
> > > >
> > > > Dan, I am not sure how other handle it.
> > > >
> > > > I know many are willing to to do a lot of work in order to use
> > free
> > > data from Yahoo or add fundamenttal info from Yahoo. I have not
> > > tried it, but my impression has been that what you get is what
you
> > > pay for. I would rather pay a reasonable fee and get a reliable
> > > product.
> > > >
> > > > About TC 2000, I beleive it is slower than QP and remapping
can
> > be
> > > a bunch of work and I don't care for their industry mapping
either.
> > > >
> > > > QP has been fine for me with very few exceptions.
> > > >
> > > > We all meet some unacceptable service personnel from time to
> > > time ... I take it as part of dealing with people. It's usually
OK,
> > > but sometime it is not.
> > > >
> > > > Sorry can't really be of much help.
> > > >
> > > > A
> > > > ----- Original Message -----
> > > > From: Dan Clark
> > > > To: amibroker@xxxxxxxxx <mailto:amibroker%40yahoogroups.com>
> > ps.com
> > > > Sent: Thursday, February 14, 2008 9:15 PM
> > > > Subject: RE: [amibroker] New EOD data feed other than Quotes
Plus
> > > >
> > > >
> > > > Ara,
> > > >
> > > >
> > > >
> > > > Hi. It's been a long time.
> > > >
> > > >
> > > >
> > > > I remember that I did not like the industry/sector info from
> > > TC2000. I can remap the data if necessary. How do others handle
> > > this?
> > > >
> > > >
> > > >
> > > > Thanks,
> > > >
> > > >
> > > >
> > > > Dan.
> > > >
> > > >
> > > >
> > > >
> > > > ----------------------------------------------------------
> > > ----------
> > > >
> > > > From: amibroker@xxxxxxxxx <mailto:amibroker%40yahoogroups.com>
> > ps.com
> > > [mailto:amibroker@xxxxxxxxx <mailto:amibroker%40yahoogroups.com>
> > ps.com] On
> > > Behalf Of Ara Kaloustian
> > > > Sent: Thursday, February 14, 2008 9:07 PM
> > > > To: amibroker@xxxxxxxxx <mailto:amibroker%40yahoogroups.com>
> > ps.com
> > > > Subject: Re: [amibroker] New EOD data feed other than Quotes
Plus
> > > >
> > > >
> > > >
> > > > TC2000 is reliable, but they do not have fundamentals or very
> > > few. (at least that's what I remember from a while back).
> > > >
> > > >
> > > >
> > > > They do not have commodities and charge extra for mutual
funds.
> > > Their data is ready earlier than QP.
> > > >
> > > >
> > > >
> > > > Their industry / sector structure is completely different tha
QP.
> > > >
> > > > ----- Original Message -----
> > > >
> > > > From: Dan Clark
> > > >
> > > > To: amibroker@xxxxxxxxx <mailto:amibroker%40yahoogroups.com>
> > ps.com
> > > >
> > > > Sent: Thursday, February 14, 2008 8:55 PM
> > > >
> > > > Subject: [amibroker] New EOD data feed other than Quotes Plus
> > > >
> > > >
> > > >
> > > > I've been using Quotes Plus data for the last 2-1/2 years.
> > > Overall, I've been very happy with Quotes Plus data and Gary
> > Lyben's
> > > (owner/president) responsiveness. That said.
> > > >
> > > >
> > > >
> > > > In the last few days, I've swapped several e-mails about a
> > > minor billing issue (credit card renewed with different number)
> > with
> > > a woman in his billing department. What should have been a very
> > > minor clerical issue left me feeling EXTREMELY angry and
offended.
> > > >
> > > >
> > > >
> > > > I vowed to switch my data feed from Quotes Plus to another
data
> > > feed as soon as possible. This is a major issue for me because
of
> > > the amount of AFL recoding involved, but I can no longer do
> > business
> > > with Quotes Plus.
> > > >
> > > >
> > > >
> > > > I need some options for other EOD data feeds. What EOD
> > > service are you using? What has your experience been? What are
> > > the alternatives now?
> > > >
> > > >
> > > >
> > > > Thanks and regards,
> > > >
> > > >
> > > >
> > > > Dan.
> > > >
> > >
> >
> >
> >
>
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