poincare {RTisean}R Documentation

Poincare section

Description

Makes a Poincare section for time continuous scalar data sets along one of the coordinates of the embedding vector.

Usage

poincare(series, l, x = 0, c = 1, m = 2, d = 1, q, C = 0, a)

Arguments

series a vector or a matrix.
l number of data to use.
x number of lines to be ignored.
c column to be read.
m embedding dimension.
d delay.
q component for the crossing.
C direction of the crossing (0: from below, 1: from above).
a position of the crossing.

Value

A matrix containing m columns for each cut. The first m-1 columns store the cohordinates of the vector at the crossing, the last one stores the time between the last two crossings.

References

R. Hegger and H. Kantz, Embedding of sequences of time intervals, Europhys. Lett. 38, 267 (1997).

Examples

## Not run: 

library(tseriesChaos)
dat <- rossler.ts
poincsect <- poincare(dat,a=1)
plot(poincsect,main="Poincare' section of Rossler data", xlab="Data cohordinates at the crossing", 
ylab="Time between the last two crossings")

## End(Not run)

[Package RTisean version 3.0.10 Index]