C2: Sample correlation integral
Description
Sample correlation integral for the specified length scaleUsage
C2(series, m, d, t, eps)
Value
- The sample correlation integral at
eps
length scale.
Details
Computes the sample correlation integral on the provided time series for the specified length scale, and considering a time window t
(see references). It uses a naif algorithm: simply returns the fraction of points pairs nearer than eps
. Normally, you would use d2
, which takes roughly the same time, but computes the correlation sum for multiple length scales and embedding dimensions at once.References
Hegger, R., Kantz, H., Schreiber, T., Practical implementation of nonlinear time series methods: The TISEAN package; CHAOS 9, 413-435 (1999)