# Description of the program: lyap_r

The program estimates the largest Lyapunov exponent of a given scalar data set using the algorithm of Rosenstein et al.

## Usage:

lyap_r [Options]

Everything not being a valid option will be interpreted as a potential datafile name. Given no datafile at all, means read stdin. Also - means stdin

Possible options are:

Option | Description | Default
--- | --- | ---
-l# | number of data to be used | whole file
-x# | number of lines to be ignored | 0
-c# | column to be read | 1
-m# | embedding dimension to use | 2
-d# | delay to use | 1
-t# | window around the reference point which should be omitted | 0
-r# | minimal length scale for the neighborhood search | (data interval)/1000
-s# | number of iterations in time | 50
-o# | output file name | 'datafile'.ros (or stdin.ros if data was read from stdin)
-V# | verbosity level 0: only panic messages 1: add input/output messages 2: add statistics for each iteration | 3
-h | show these options | none

## Description of the Output:

- First column: Number of the iteration
- Second column: Logarithm of the stretching factor

View the C-sources.

See also lyap_k.

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