gastropy.find_cycle_edges

gastropy.find_cycle_edges(phase)

Detect cycle boundaries from a wrapped phase time series.

Finds indices where the phase wraps from +pi back to -pi, indicating the start of a new gastric cycle.

Parameters:

phase (array_like) – Instantaneous phase in radians (-pi to pi).

Returns:

edges – Sample indices of cycle boundaries (phase wrap points). Each edge marks the first sample of a new cycle.

Return type:

np.ndarray

Examples

>>> import numpy as np
>>> from gastropy.signal import find_cycle_edges
>>> phase = np.linspace(-np.pi, np.pi, 100)
>>> phase = np.tile(phase, 5)  # 5 cycles
>>> edges = find_cycle_edges(phase)