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RE: Understanding Categories was: Re: [amibroker] Importing data into Amibroker



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Buzz,
the gif will be visible in purbytes tomorrow, I will post the ref 
when available. Until then, I think you got the message:      If you 
d e f i n e carefully EW, then AFL will be on your side. After the 
basic code, you may add details, both qualitative and quantitative.
I will post the basic code tomorrow, for both AA and IB windows. The 
rest will be left to you, I would be happy to stay out of this 
chapter, I dont believe there is something interesting in EW 
literature [sorry about that].
Back to you soon, it is 1:30 after this Friday midnight in Athens, it 
is time for a cold beer and I hope you agree...
Dimitris Tsokakis
--- In amibroker@xxxxxxxxxxxxxxx, "buzzmr" <buzzmr@xxxx> wrote:
> --- In amibroker@xxxxxxxxxxxxxxx, "Dimitris Tsokakis" 
<TSOKAKIS@xxxx> 
> wrote:
> > In
> > http://finance.groups.yahoo.com/group/amibroker/message/65542
> > Buzz wrote, among the others
> > "I simply wanted some direction to help me determine
> > if 'the wheel had been already invented' using AFL ..OR.. if there
> > are some coding suggestions, OR cautions, when using AFL for
> > programming AB to do the specific job of E.W.-candidate 
PRELIMINARY
> > SCREENING --- that's all. In this regard, Dimitris's commentary 
has
> > been MOST helpful and useful, and I see I have to do 
more 'homework'
> > regarding defining the process and then implementing the
> > coding."
> > Buzz,
> > Let us be creative.
> > We will  code EW if we have a clear definition of EW. 
> > Else, we will talk till June 2014 [or more] and, to be honest, I 
> have better things to do.[suppose the same for you]
> > Let us see the first http://www.equis.com/Education/TAAZ/?page=53
> > chart.
> > Do we agree that
> > 01. E0, E2, E4, E6 and E8 are troughs
> > 02. E1, E3, E5 and E7 are peaks 
> > 11. E5>E3>E1
> > 12. E4>E2>E0
> > 13. E5>E7
> > 14. E6>E8
> > 15. E5>E7
> > 16. point E8 is *after* point E7
> > 
> > If positive, the AFL code is coming from the corner.
> > If your interpretation for EW sequence is different, please 
advise 
> *before* the code.
> > Dimitris Tsokakis
> 
> Dimitris,
> 
> Thank you for taking the time to assist in this process.  I VERY 
MUCH 
> appreciate YOU for it!!
> 
> I was NOT able to see the 00e.gif attachment, but I DID retrieve 
the 
> TAAZ chart.  I believe we DO agree on your statements 01,02, and 11 
> thru 16 (although I think 13 is identical to 15 and superfluous?).  
I 
> will restate the conditions from the point 'labels' on the TAAZ 
chart:
> 
> 01.  {'p0'(not labeled), p2, p4, pA, pC} are troughs, where 'pX' 
> refers to 'point x' or ('pivot x'),
> 
> 02.  {p1, p3, p5, pB} are peaks,
> 11.  p5 > p3 > p1,
> 12.  p4 > p2 > 'p0'
> 13.  p5 > pB
> 14.  pA > pC
> 15.   (repeat of 13.)
> 16.  [ n0 < n1 < n2 < n3 < n4 < n5 < nA < nB < nC ], where 'nX' is 
> the data bar number where each 'pX' point occurs, and corresponds 
to 
> a sequential TIME marker;  hence, ['nB < nC'] or ["E8 is 'after' 
E7"] 
> are EQUIVALENT statements.
> 
> There are some additional constraints as well:
> 
> 21.  (p1-p2) < (p1-'p0')
> 22.  (p3-p2) >> (p1-'p0'),  [say, (p3-p2) > 1.2*(p1-'p0') ]
> 23.  (p3-p4) < (p3-p2)
> 24.  (pB-pA) < (p5-pA)
> 25.  (p5-pC) << (p5-'p0'),  [say, (p5-pC) < 0.7*(p5-'p0') ]
> 
> #13 is actually 'encompassed' in #24 and so may be eliminated.  I 
> think there may be some additional redundancies, but to keep things 
> clear for right now, I'll leave the rest alone.
> 
> From my current understanding of E.W., this would seem to be the 
> minimum set of constraints and conditions for the TAAZ example 
> prototype chart pattern.
> 
> I'm beginning to see how this may be programmed in AFL, but I'll 
> readily admit that this is rather involved.  It looks like it's a 
> matter of being very careful to make sure all constraints are 
> properly encoded (as in any OTHER programming endeavor!!).  This 
> seems like a reasonable place to start.....
> 
> Thanks, Dimitris!!
> 
> Buzz



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