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[RT] Re: Gen: FFT Phase Space



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Ron:

Please send me a price on your art piece in 16 X 24 with a 1 3/8" oak frame.
Seriously,  I think it would make a great abstract  print for my living room.

Norman E. 

Jack Higgins wrote:
> 
> Hi Ron,
> 
> I always look forward to your posts as you look at things in an inovative
> way.
> 
> I usually can see what you are trying (may not understand it mind you)
> but I am afraid this ones graphic just went whoosh over my head. Perhaps
> you could give a simple interpretation of what the graphic is showing and
> why it may be cyclical. I can see the diamond shapes ranging from large
> to small and the color changes within but am not sure of the
> significance. What is a "strange Attractor"? Perhaps there is a way to
> plot the results in an isometric view to give it some depth which would
> make the graphic more descriptive on its own.
> 
> Just curious.
> 
> Jack
> 
> On Sun, 2 Jul 2000 00:29:43 -0400 Ronald McEwan <rmac@xxxxxxxx> writes:
> > I ran an FFT analysis of the NYSE AD data. I took the resulting
> > recombined sine wave and created a "Phase Space" plot using an
> > embedding
> > dimension of 1 and a delay of 30. I was quite surprised at the
> > results.
> > From the attached gif you can see that this is almost a text book
> > example
> > of a "Strange Attractor".  I am still learning about using Non
> > Linear
> > Dynamics and interpreting the results. I can only speculate that if
> > there
> > is deterministic chaos in the NYSE AD line (which I now belive their
> > is),
> > that the "Strange Attractor" may be cyclical in its dynamic.
> >
> > Ron McEwan