|
4.86 is big update because it will feature completely new
account manager and it takes quite a bit to make it working
(and even when it arrives it won't be fully featured yet). I
hope to deliver it in days.
Best regards,
Tomasz
Janeczko
amibroker.com
----- Original Message -----
Sent: Friday, October 06, 2006 12:54
PM
Subject: Re: [amibroker] Re: Polynomial
Trendlines
That is very welcome news indeed. As per your planned release
schedule when do you think you will be releasing 4.86?
Rakesh
On 10/6/06, Tomasz
Janeczko <[EMAIL PROTECTED]> wrote:
For
that you need Fourier transform and FFT is coming as a built in function in
4.86
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message
-----
From: "Fred" < [EMAIL PROTECTED]>
To:
<[email protected]>
Sent:
Friday, October 06, 2006 3:48 AM
Subject: [amibroker] Re: Polynomial
Trendlines
> Now if someone can take this method and/or AFL
or at least provide a
> how to that takes us into Trigometric curve
fitting and extrapolation
> i.e. the solution of simultaneous
equations in the generalized format
> of a spectral model i.e.
...
>
> S ~ (a1 cos w1t + b1 sin w1t) + ... + (Am cos wm + bm
sin wmt)
>
> Then we might have something fairly useful
...
>
> I suspect Gaussian Elimiation can be used for this as
well, but I
> don't have the skill level to calculate the necessary
matrix entries
> to get it down ...
>
> Any mathematicians
out there ?
>
>
> --- In [email protected],
"Fred" <[EMAIL PROTECTED]> wrote:
>>
>> When stretch over
enough data almost any order will become a pseudo
>> straight line
...
>>
>> By their nature a first order IS a straight
line, 2nd U shape, 3rd
>> order sine wave etc
...
>>
>> Try highlighting a SMALLER segment of data by
using the beginning
> and
>> ending range markers
...
>>
>>
>> --- In [email protected],
"d_hanegan" <dhanegan@> wrote:
>> >
>> >
Fred:
>> >
>> > Thanks for your posts and all of the
information concerning the
>> > Polynomial
Trendlines. When I run the code, I pretty much just
>
get
>> > a straight green line; it does not fit my
data. I thought I had
>> > read all of the
posts. Am I missing something?
>> >
>> >
Thanks.
>> >
>> > Dan
>> > --- In [email protected],
"Fred" <ftonetti@> wrote:
>> > >
>> > >
Be AWARE ... that was a hand picked image ... if you play with
>>
> > PolyFit you will see that sometimes data fits the
>
extrapolations,
>> > > sometimes it doesn't.
>> >
>
>> > > The higher the order, the flakier the
extrapolations are likely
>> to
>> > > become
...
>> > >
>> > > So ... Remember what it is
... a generator of an equation in
> the
>> >
form
>> > >
>> > > Y = a + bx + cx^2 + ... +
nx^(n-1)
>> > >
>> > > Where the coeeficients
were pick to fit the data.
>> > >
>> > > IMHO
what PolyFit is, epecially with very high orders is a very
>> >
good
>> > > detrender of IN SAMPLE data, nothing more,
nothing less ...
> That
>> > in
>> > > and
of itself is a useful tool ... Gaussian Elimination can
>
also
>> > be
>> > > the basis for some other
things that are pretty decent when the
>> > order
>>
> > is kept fairly low i.e. 3 or 4 ...
>> >
>
>> > > --- In [email protected], "Ara
Kaloustian" <ara1@>
> wrote:
>> > >
>
>> > > > Polynomial TrendlinesFred,
>> >
> >
>> > > > There have been a lot of posting on
this subject. Your one
>> > image
>> >
> however is a very powerful message of its potential.
>> >
> >
>> > > > Now I have to go back and review all
the post ... hoping to
>> find
>> > a
>> >
> good reference to study.
>> > > >
>> >
> > Anyone using it succesfully now?
>> > >
>
>> > > > Ara
>> > > >
----- Original Message -----
>> > > > From:
Fred Tonetti
>> > > > To: [email protected]
>>
> > > Sent: Tuesday, October 03, 2006 3:32 PM
>> > > > Subject: [amibroker] RE: Polynomial
Trendlines
>> > > >
>> > > >
>>
> > > Oops .
>> > > >
>>
> > >
>> > > >
>> > >
> Meant to include this visual .
>> > >
>
>> > > >
>> > > >
>> >
> > Green is calculated . White is extrapolated .
>> > > >
>> > > >
>> > >
>
>> > > >
>> > > >
>> >
> >
>> > > >
>> > > >
--------------------------------------------------------------
>
--
>> -
>> > ---
>> > >
----------
>> > > > I am using the free
version of SPAMfighter for private
> users.
>> > >
> It has removed 8588 spam emails to date.
>> >
> > Paying users do not have this message in their
emails.
>> > > > Try SPAMfighter for free
now!
>> > > >
>> > >
>>
>
>>
>
>
>
>
>
>
>
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