pySPFM._solvers.debiasing.group_hrf

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pySPFM._solvers.debiasing.group_hrf#

group_hrf(hrf, non_zero_idxs, group_dist=3)[source]#

Group HRFs based on the distance between non-zero coefficients.

Parameters:

  • hrf ((E x T) ndarray) – Matrix containing shifted HRFs in its columns. E stands for the number of volumes times the number of echo-times.

  • non_zero_idxs ((T) ndarray) – Array containing the indexes of the non-zero coefficients.

  • group_dist (int, optional) – Maximum distance between non-zero coefficients to be considered as part of the same group, by default 3

Returns:

  • hrf_out ((E x T) ndarray) – Matrix containing shifted HRFs in its columns. E stands for the number of volumes times the number of echo-times.

  • new_idxs ((T) ndarray) – Array containing the indexes of the non-zero coefficients.

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