import pyPPG
import pandas as pd
from pyPPG.ppg_bm.bm_extraction import get_biomarkers
###########################################################################
##################### Get Biomarkers of PPG Derivatives ###################
###########################################################################
[docs]
def get_ppg_derivs(s: pyPPG.PPG, fp: pyPPG.Fiducials):
"""
This function returns the biomarkers of PPG derivatives.
:param s: object of PPG signal
:type s: pyPPG.PPG object
:param fp: object of fiducial points
:type fp: pyPPG.Fiducials object
:return:
- df_pw: data frame with onsets, offsets and peaks
- df_biomarkers: dictionary of biomarkers of PPG derivatives
- biomarkers_lst: list a biomarkers with name, definition and unit
"""
biomarkers_lst = [
["Tu", "u-point time, the time between the pulse onset and u-point", "[s]"],
["Tv", "v-point time, the time between the pulse onset and v-point", "[s]"],
["Tw", "w-point time, the time between the pulse onset and w-point", "[s]"],
["Ta", "a-point time, the time between the pulse onset and a-point", "[s]"],
["Tb", "b-point time, the time between the pulse onset and b-point", "[s]"],
["Tc", "c-point time, the time between the pulse onset and c-point", "[s]"],
["Td", "d-point time, the time between the pulse onset and d-point", "[s]"],
["Te", "e-point time, the time between the pulse onset and e-point", "[s]"],
["Tf", "f-point time, the time between the pulse onset and f-point", "[s]"],
["Tb-c", "b-c time, the time between the b-point and c-point", "[s]"],
["Tb-d", "b-d time, the time between the b-point and d-point", "[s]"],
["Tp1", "p1-point time, the time between the pulse onset and p1-point", "[s]"],
["Tp2", "p2-point time, the time between the pulse onset and p2-point", "[s]"],
["Tp1-dp", "p1-dia time, the time between the p1-point and diastolic peak", "[s]"],
["Tp2-dp", "p2-dia time, the time between the p2-point and diastolic peak", "[s]"],
]
header = ['name', 'definition', 'unit']
biomarkers_lst = pd.DataFrame(biomarkers_lst, columns=header)
df_pw, df_biomarkers = get_biomarkers(s, fp, biomarkers_lst.name)
return df_pw, df_biomarkers, biomarkers_lst