How to load .mat file and convert it to .csv file?
import pandas as pd
from scipy.io import loadmat
data_dict = loadmat('ecgca274_edfm.mat')
data_array = data_dict['val']
data_array = data_array.transpose(1, 0)
df = pd.DataFrame(data_array,
columns=['ch'+str(n) for n in range(1,7)])