|
PureBytes Links
Trading Reference Links
|
I
don't get this. If a stock doesn't trade for a bar, there's some justification
for saying its price is the price of the last trade, though I could also see
ignoring that bar completely. But how does the price of a stock change if it's
neither bought nor sold? How is price determined in that case? Neither bid or
ask is actually price if nobody trades.
<SPAN
class=705510414-01012004>
<SPAN
class=705510414-01012004>Dave
<BLOCKQUOTE
>Even
Worse,The Stock price could move, But still no one trades in it, And
you wouldn't even know about it - IF you were using unpadded
data!!!!Michael.At 11:54 PM 1/01/2004, you wrote:>I
Agree with Chuck
here,> Why on
earth you would want unpadded data is beyond me. (For the>reason of
disrupting indicators).>>With unpadded data, If a stock simply
had no trades for the day, then it>would be ommited from the unpadded
list of stocks. Not just wether it was>actualy able to trade that day
(Suspended or whatever).>>When I want a MA of the last 3 trading
days - If I don't average in the day>with 0 trades, Im not realy
getting an MA of the last 3
days.>>Michael.>>>At 10:47 PM 1/01/2004,
you wrote:> >Chuck,> >> >My question for you,
however, is how do the various indicators and moving> >average
calculations deal with un-padded data holes. If I do a 5-day
MA,> >for instance, and one of the days has no data, what would I
get for the> >MA? Same for RSI or any other
indicator. It's taken me years to get> >rid of
data holes and find a data providor who will consistently pad them>
>for me so that indicators and other calculations work properly
(IMO).> >> >That's why I prefer unpadded data. I don't
want 'artificial' data to> >affect my indicators. The MA from
unpadded data represents only real> >trading days data.>
>So if say there was no trading on friday, the MA would represent 5
days> >before friday (previous friday, last monday, tuesday, wed,
thursday).> > From my *personal* point of view, calculation of
indicators should not be> > affected by bars artificially added by
padding process.> >But of course your preference may be different
and you can use padded data> >and include all bars (including
artificial ones with zero volume).> >> >Best
regards,> >Tomasz Janeczko> >amibroker.com>
>----- Original Message -----> >From:
<mailto:chuck_rademacher@xxxxxxxxxx>Chuck Rademacher> >To:
<mailto:amibroker@xxxxxxxxxxxxxxx>amibroker@xxxxxxxxxxxxxxx>
>Sent: Wednesday, December 31, 2003 9:29 PM> >Subject:
[amibroker] More on data holes - for TJ> >> >TJ,>
>> >Paul's plug-in and my conversion program could, if desired,
create data> >holes (consistently) for users who want
them. I'm not trying to be> >funny, but it is possible
to leave a hole on those days when the volume is> >zero.
We can forget about why anyone would want to do this. It can
be> >done and it would be 100% consistent rather than 15% consistent
like it is> >for most data providors.> >> >My
question for you, however, is how do the various indicators and moving>
>average calculations deal with un-padded data holes. If I do a
5-day MA,> >for instance, and one of the days has no data, what
would I get for the> >MA? Same for RSI or any other
indicator. It's taken me years to get> >rid of
data holes and find a data providor who will consistently pad them>
>for me so that indicators and other calculations work properly
(IMO).> >> >I could test to see how some of these
calculations are affected... if only> >I had some data
holes!!
Send BUG REPORTS to bugs@xxxxxxxxxxxxx
Send SUGGESTIONS to suggest@xxxxxxxxxxxxx
-----------------------------------------
Post AmiQuote-related messages ONLY to: amiquote@xxxxxxxxxxxxxxx
(Web page: http://groups.yahoo.com/group/amiquote/messages/)
--------------------------------------------
Check group FAQ at: http://groups.yahoo.com/group/amibroker/files/groupfaq.html
Yahoo! Groups Sponsor
ADVERTISEMENT
Yahoo! Groups Links
To visit your group on the web, go to:http://groups.yahoo.com/group/amibroker/
To unsubscribe from this group, send an email to:amibroker-unsubscribe@xxxxxxxxxxxxxxx
Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
|