emd.imftools.assess_joint_if#
- emd.imftools.assess_joint_if(imf, freq_transform_args=None, return_mode='full')[source]#
Assess whether two signals have a well formed joint instantaneous frequency.
- Parameters
- imfndarray
Array of intrinsic mode functions.
- freq_transform_args{None, dict}
Optional dictionary of keyword arguments to be passed to emd.spectra.frequency_transform
- return_mode{‘binary’, ‘full’}
Whether to return the full joint instantaneous frequency or a binarised vector indicating samples that have positive joint instantaneous frequency.
- Returns
- joint_ifndarray
Array of joint instantaneous frequency values or binary values indicating whether the joint instantaneous frequency was less than zero.
References
- 1
Fabus, M. S., Woolrich, M. W., Warnaby, C. W., & Quinn, A. J. (2021). Understanding Harmonic Structures Through Instantaneous Frequency. Cold Spring Harbor Laboratory. https://doi.org/10.1101/2021.12.21.473676