Rank: 700 based on 207 downloads (last 30 days) and 0 file submitted
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mirwais

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Ankara University

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19 Feb 2013 Largest Lyapunov Exponent with Rosenstein's Algorithm This code calculates the largest lyapunov exponent of time series with Rosenstein's Algorithm. Author: mirwais largest lyapunov expo..., rosensteins algorithm, hi, hi how i should calcu... 120 39
  • 4.14286
4.1 | 7 ratings
19 Jun 2012 Minimum embedding dimension Finds minimum embedding dimension with false nearest neighbours method. Author: mirwais time series, phase space reconstru..., minimum embedding dim..., false nearest neighbo... 49 1
30 May 2012 Minimum embedding dimension Provides both phase space reconstruction and finding minimum embedding dimension with Cao's method. Author: mirwais cao, minimum embedding dim..., phase space reconstru..., time series, nearest neighbours 38 4
  • 4.0
4.0 | 1 rating
Comments and Ratings by mirwais View all
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06 Feb 2014 Largest Lyapunov Exponent with Rosenstein's Algorithm This code calculates the largest lyapunov exponent of time series with Rosenstein's Algorithm. Author: mirwais

Hi,
I have tested my algortihm with well known time series data (for example Lorenz) and i have found LLE for Lorenz data as 1.5013. I used <ln(d)> for the divergence value. Did you try the data with another code and find LLE as 1.5? You can send the values of your parameters and your data via e mail.

03 Dec 2013 Minimum embedding dimension Finds minimum embedding dimension with false nearest neighbours method. Author: mirwais

These codes are mine. I don't know how did you do but this is not ethic.

03 Dec 2013 Largest Lyapunov Exponent with Rosenstein's Algorithm This code calculates the largest lyapunov exponent of time series with Rosenstein's Algorithm. Author: mirwais

These codes are mine. I don't know how did you do but this is not ethic.

23 Oct 2013 Largest Lyapunov Exponent with Rosenstein's Algorithm This code calculates the largest lyapunov exponent of time series with Rosenstein's Algorithm. Author: mirwais

To Norbert Marwan,
The aim is fitting a linear line from the divergence curve so the elements of tlinear vector correspond to x-axis of divergence curve(d parameter), as the result this vector musn't exceed d vector. You can look at polyfit command. And if you think about before giving 2 points for rating, i will be glad because i studied a lot and controlled over and over while writing this code and there isn't any big error.

23 Oct 2013 Largest Lyapunov Exponent with Rosenstein's Algorithm This code calculates the largest lyapunov exponent of time series with Rosenstein's Algorithm. Author: mirwais

I get error messages:

Index exceeds matrix dimensions.

Error in lyarosenstein (line 51)
F = polyfit(tlinear,d(tlinear),1);

Comments and Ratings on mirwais' Files View all
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05 Apr 2014 Minimum embedding dimension Provides both phase space reconstruction and finding minimum embedding dimension with Cao's method. Author: mirwais Lu, Meng

As neardis(2)is the denominator in the equation.Sometimes occur problem(Inf,NaN,...)

Add: if neardis(2)==0
neardis(2)=1e-6;
end

10 Mar 2014 Minimum embedding dimension Provides both phase space reconstruction and finding minimum embedding dimension with Cao's method. Author: mirwais Long

hi mirwais,
recently, i use your codes of cao's method to process some data,so i have some questions.
1, are you sure that your codes are totally referred to that paper?
2, could your codes be used to process all kinds of data?

06 Mar 2014 Largest Lyapunov Exponent with Rosenstein's Algorithm This code calculates the largest lyapunov exponent of time series with Rosenstein's Algorithm. Author: mirwais Livia

Dear mirwais,
I'm not quite understand the workflow of this file. Could you explain it step by step? And, what are the value of parameter meanperiod and maxiter? pls reply via my email: yjchen79@gmail.com
Thanks for your help~

12 Feb 2014 Largest Lyapunov Exponent with Rosenstein's Algorithm This code calculates the largest lyapunov exponent of time series with Rosenstein's Algorithm. Author: mirwais tikyaa, emmanuel

hello, am trying to calculate the lyapunov exponents of some meteorological data(daily averages of temp, rainfall etc)collected over 34yrs. i have 365 data points in a yr, is that sufficient? my sample interval is 1day(24hrs) can this work? what do i do? pls reply here and via my emai: etikyaa@fudutsinma.edu.ng.
thanks for your efforts.

06 Feb 2014 Largest Lyapunov Exponent with Rosenstein's Algorithm This code calculates the largest lyapunov exponent of time series with Rosenstein's Algorithm. Author: mirwais mirwais

Hi,
I have tested my algortihm with well known time series data (for example Lorenz) and i have found LLE for Lorenz data as 1.5013. I used <ln(d)> for the divergence value. Did you try the data with another code and find LLE as 1.5? You can send the values of your parameters and your data via e mail.

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