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Date File Comment by Comment Rating
23 Nov 2009 Detrended Fluctuation Analysis Detrended Fluctuation Analysis,fractal analysis Author: Guan Wenye Willes, Jefferson

Dear Guan, the function output "function output1 = DFA (DATA, win_length, order)" with which data have to enter: DATE, win_length, order??

15 Jul 2009 Detrended Fluctuation Analysis Detrended Fluctuation Analysis,fractal analysis Author: Guan Wenye Daubenspeck, Andy

The file dfm.m seems to be truncated at 26 lines leaving the for-loop unfinished.

05 Jun 2009 Detrended Fluctuation Analysis Detrended Fluctuation Analysis,fractal analysis Author: Guan Wenye Wenye, Guan

hi meysam abed
it is consitent with the program provided by oxford univ
www.eng.ox.ac.uk/samp/dfa_soft.html
i have checked with it

27 May 2009 Detrended Fluctuation Analysis Detrended Fluctuation Analysis,fractal analysis Author: Guan Wenye abed, meysam

dear Guan have you checked your DFA code with the code in Physionet.org and it's sample data with results???

01 May 2009 Detrended Fluctuation Analysis Detrended Fluctuation Analysis,fractal analysis Author: Guan Wenye Wenye, Guan

to mehak gandhi :it would definitely runs faster if you code it in C or Fortran

10 Nov 2008 Detrended Fluctuation Analysis Detrended Fluctuation Analysis,fractal analysis Author: Guan Wenye gandhi, mehak

is the program supposed to run slow

14 Jul 2008 Detrended Fluctuation Analysis Detrended Fluctuation Analysis,fractal analysis Author: Guan Wenye Wenye, Guan

For fewer points, you may get incorrect result :).

13 Jul 2008 Detrended Fluctuation Analysis Detrended Fluctuation Analysis,fractal analysis Author: Guan Wenye U, Srav

this may be a stupid question...but why do you need a minimum of 2000 data points?

08 May 2008 Semi variance method and scaled windowed variance method for fractal time series analysis. Semi variance method and scaled windowed variance method for fractal time series analysis. Author: Guan Wenye Shvorob, Dimitri

This is a typical novice script with all the usual issues. Here's hoping John D'Errico will come along and explain what the problems are. However, the link suggested by the author,

http://en.wikipedia.org/wiki/Semivariance

- and its definition of semi-variance - was interesting to see.

07 May 2008 Sierpinski triangle A cellular automation approach to Sierpinski triangle Author: Guan Wenye Wenye, Guan

To:Dimitri Shvorob
Thanks for your commments and wiki reference,i just made the matlab code from a text book,and now I know the name of this gerenation rule and many other rules about cellular automation.

07 May 2008 Sierpinski triangle A cellular automation approach to Sierpinski triangle Author: Guan Wenye Shvorob, Dimitri

Hardly an original idea.

http://en.wikipedia.org/wiki/Rule_90
http://en.wikipedia.org/wiki/Sierpinski_triangle

Better placed in 'Gallery' perhaps?

07 May 2008 Sierpinski triangle A cellular automation approach to Sierpinski triangle Author: Guan Wenye hai yan, gao

you are great!expecting for your bigger progress!

04 Mar 2008 shannon and non-extensive entropy shannon Tsallis,renyi,escort Tsallis entropy and relative entropy Author: Guan Wenye Wang, Chen

great!

 

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