pyampact.speechDescriptorsUtils.compute_correlation_dimension

pyampact.speechDescriptorsUtils.compute_correlation_dimension(y, m=3, tau=2, r_frac=0.1)[source]

Compute Correlation Dimension (CD)

Parameters:

  • y (array) – time series values

  • m (int) – embedding dimension for phase-space reconstruction; default = 3

  • tau (int) – time delay (in samples); default = 2

  • r_frac (float) – fraction of the distance standard deviation used to set the radius threshold; default = 0.1

Returns:

cd – estimated correlation dimenstion, or np.nan if insufficient data

Return type:

float