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- From: mbk@lyapunov.ucsd.edu (Matt Kennel)
- Newsgroups: comp.theory.dynamic-sys
- Subject: Re: Calculation of Lyapunov xponents
- Message-ID: <16ekleINNkhu@network.ucsd.edu>
- Date: 13 Aug 92 21:36:46 GMT
- References: <1992Aug13.144534.24701@rhrk.uni-kl.de>
- Organization: Institute For Nonlinear Science, UCSD
- Lines: 36
- NNTP-Posting-Host: lyapunov.ucsd.edu
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-
- starke@rhrk.uni-kl.de (Gerolf Starke; 2128) writes:
- : androula@lips.ecn.purdue.edu (Ioannis Androulakis) writes:
- :
- : >Is there any public domain code available for
- : >calculating Lyapunov exponents of discrete
- : >dynamical systems ?
- : >Thanks for any information,
- : >ioannis
- :
- : >androula@ecn.purdue.edu
- :
- : Yes! Try lyapunov.ucsd.edu (anonymous ftp) in directory
- : univ-wuerzburg-germany the file called lce-1.10.tar.Z.
- : It calculates the complete spectrum of LE from time
- : series.
-
- Be aware though, that program only uses a local linear fit,
- rather than local polynomial fits. We've found that that often means
- you can't get the negative exponents that well, but apparently others
- disagree.
-
- If you're only interested in the positive ones, then it should be OK,
- provided you have enough data.
-
- :
- : Good luck,
- : Gerolf Starke
- : --
- : Gerolf Starke phone: +49/631/205-2128
- : Institute of Applied Mechanics internet: starke@rhrk.uni-kl.de
- : University of Kaiserslautern, 6750 compuserve: 100010,3451
- : Germany fax: +49/631/205-3055
-
- --
- -Matt Kennel mbk@inls1.ucsd.edu
- -Institute for Nonlinear Science, University of California, San Diego
-