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WeightedPhaseLagIndex

Namespace: CONNECTIVITYLIB  ·  Library: Connectivity Library

#include <connectivity/weightedphaselagindex.h>

class CONNECTIVITYLIB::WeightedPhaseLagIndex

Computes the Weighted Phase Lag Index of Vinck et al.

(NeuroImage 2011).

Each channel pair is reduced to |sum Im(S_{xy})| / sum |Im(S_{xy})|, weighting every cross-spectrum sample by the magnitude of its imaginary part. This down-weights near-zero-lag samples that dominate the bias of the plain PhaseLagIndex and yields higher detection power for true delayed interactions while preserving the volume-conduction rejection property. Per-trial sums are accumulated in ConnectivitySettings::IntermediateSumData and shared with DebiasedSquaredWeightedPhaseLagIndex when both metrics are requested in one batch.

Weighted Phase Lag Index estimator (Vinck et al. 2011); volume-conduction-robust with lower bias than PLI.

Inheritance​

Public Methods​

WeightedPhaseLagIndex()​

Constructs a WeightedPhaseLagIndex object.

Static Methods​

calculate(connectivitySettings)​

Calculates the WPLI between the rows of the data matrix.

Parameters:

Returns:

  • Network — The connectivity information in form of a network structure.

Authors of this file​