Added a new function in the pcg module that segments the PCG into the heart sound states based on the R-peak and end T-wave positions of a simultaneous ECG signal (adapted to Python from code developed by David Springer ). An example file with the two simultaneous signals is included.
I used the getTPositions function from the ecg module and found an issue. The identification of the R-peak and the T-wave on the ECG templates was done using the array indexes:
but these values seem to change depending on the sampling frequency of the signal. I changed it to be based on the templates time axis reference templates_ts in seconds:
# R peak on the template is always on time instant 0 seconds
template_r_position = np.argmin(np.abs(templates_ts - 0))
# the T wave start is approximately 0.14 seconds after R-peak
template_T_position_min = np.argmin(np.abs(templates_ts - 0.14))
I corrected the same issue in getQPositions, getSPositions and getPPositions, and also added some exception handling so the functions return an output even when they can't find the specific wave in all of the templates.
Added a new function in the pcg module that segments the PCG into the heart sound states based on the R-peak and end T-wave positions of a simultaneous ECG signal (adapted to Python from code developed by David Springer ). An example file with the two simultaneous signals is included.
I used the
getTPositionsfunction from the ecg module and found an issue. The identification of the R-peak and the T-wave on the ECG templates was done using the array indexes:https://github.com/scientisst/BioSPPy/blob/7a34e1f1c01fc6c27e0620c2cb9e0b60c34ebc13/biosppy/signals/ecg.py#L1599-L1602
but these values seem to change depending on the sampling frequency of the signal. I changed it to be based on the templates time axis reference
templates_tsin seconds:I corrected the same issue in
getQPositions,getSPositionsandgetPPositions, and also added some exception handling so the functions return an output even when they can't find the specific wave in all of the templates.