> The error comes because *I am using Amibroker 5.00 version.
*
That's interesting. How come you are using 5.00 version when it was
released 3 years ago
and IS NOT available for download from AmiBroker sites and you are NOT
registered user.
If you were trial user (30 days), you would be using 5.20 because that
is what is only available
from AmiBroker site for over one year.
So, you are using unauthorized, illegal version and you are expecting
legal users to help you.
What a shame.
Best regards,
Tomasz Janeczko
amibroker.com
On 2009-12-06 08:21, ram vel wrote:
Dear Joris
Many thanks for the solution.
Your afl is possibly ok. I know and certain that you take utmost care
to present the precise and accurately working version of afl.
The error comes because *I am using Amibroker 5.00 version.*
I checked that.
I will try to get 5.25. Somehow I feel it time taking on my part.
Should it be possible to make minor modification by using HVB and LVB
to make the same code work in my present code itself, kindly let me know.
regards, with grateful thanks
rvlv
--- On *Sun, 12/6/09, Joris M.schuller /<[email protected]>/* wrote:
From: Joris M.schuller <[email protected]>
Subject: RE: [amibroker] Trimming yahoo data bars from abnormally
long to reasonable size-How can we ?
To: [email protected]
Date: Sunday, December 6, 2009, 1:07 AM
You shouldn’t have any syntax errors. The procedure I follow makes
that unlikely: Before sending an afl out to the group, I first
send it in an email to myself, copy and paste the afl from this
email back into a new afl and display and test it again. _Only
then_ do I send the original to the group. This afl uses
HighestVisibleValue and LowestVisibleValue which became available
in AB 5.25.
Check your version and update if necessary.
*From:* amibro...@yahoogrou ps.com [mailto:amibroker@ yahoogroups.
com] *On Behalf Of *Joris Schuller
*Sent:* Saturday, December 05, 2009 6:13 PM
*To:* amibro...@yahoogrou ps.com
*Subject:* RE: [amibroker] Trimming yahoo data bars from
abnormally long to reasonable size-How can we ?
The simplest solution is to adjust manually using the simple code
below. I prefer manually because I want to see which data are
adjusted and which data are real. I have generated some
dynamically adjusting alternatives. About 5 years ago when IqFeed
data were somewhat noisy I tested and submitted to AB 5 different
approaches of spike suppression to resolve the problem. More than
6 months later Solution no 5( using deviation from ATR) was
implemented in the menu). Don’t know whether it is still there
since I don’t use IQFeed at the moment. I still have all the
solutions somewhere on one of my hard drives and if I can find
them I will send them.
Incidentally the selected solution was the one I only submitted
for completeness and to pacify those who like to dabble in
statistics (typically non-scientists) . This is about statistics,
but of removing spikes that prevent me from looking at the rest of
the data. Whether the spikes are statistically significant or not
is irrelevant, since in all cases they mask the surrounding data
and thus have to be suppressed.
ScaleAdjFactHigh=Param("ScaleAdjFactHigh",1,0.9,1,0.0001);// Forex
values;
ScaleAdjFactLow=Param("ScaleAdjFactLow",1,1,1.1,0.0001);// Forex
values;
Hmax=HighestVisibleValue(*H*);
LMin=LowestVisibleValue(*L*);
Plot(*C*,"C",1,*styleOwnScale*|64,LMin*ScaleAdjFactL
ow,Hmax*ScaleAdj FactHigh) ;
*From:* amibro...@yahoogrou ps.com [mailto:amibroker@ yahoogroups.
com] *On Behalf Of *rvlv
*Sent:* Saturday, December 05, 2009 9:49 AM
*To:* amibro...@yahoogrou ps.com
*Subject:* [amibroker] Trimming yahoo data bars from abnormally
long to reasonable size-How can we ?
Hi afl experts and experienced coding specialists,
Please few minutes to address this problem that most Amibroker
uses face.
summary
people use Amiquote and download stockdata on intraday,daily
timeframes into a separate database.
Then they like to apply certain pattern recognition afl on this data.
The formula does not give proper results.
Reason?
yahoo gives some times once in a while,an abnormal bar that is say
10 times linger than normal bars. Once these oddsized bars appear,
the newbies are in confusion,pattern detection or following
established simple trading rules becomes not anymore possible.
There must be a simple solution to trim the oddsized abnormal bar
using an automatic trimming afl program.
My humble request to experts like Graham kavanagh(with whose
educating afls we learntr to make our baby steps),Herman, who
gives very useful hints that save lot of troubles,and many other
generous
people like Mike,droskill, reinsley etc,who are willing to help
always, please give us a helping hand to deal with this problem.
One can say HEY MAN, Yahoo makes this odd sized data bars and they
are least bothered about quality. Why dont you buy some paid data?
My answer is just think about guys who wish to spend for paid
broker data once they cross the loosers hell zone(mostly they get
losses and still struggling).
My point is whatever yahoo gives, I manage by trimming data at my end.
Please accept my gratitude in advance for your help.
regards
rvlv
