ValueError: All picks must be < n_channels (8), got 8

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1

Hello
I am writing the following code to apply filtering to EEG data from csv file, but when i run the code i got this error ( ValueError: All picks must be < n_channels (8), got 8 ) , can anyone help to solve the problem

import numpy as np
import pandas as pd
import mne
import matplotlib.pyplot as plt
from math import pi

path = 'C:/Users/name/Documents/gtec/Unicorn Suite/Hybrid Black/Unicorn Python/Examples/Acquisition Example/'
data = pd.read_csv(path + 'output2.csv',
                   skiprows=0, usecols=[*range(0, 8)])*1e-6
ch_names = ['e1', 'e2', 'e3', 'e4', 'e5', 'e6', 'e7', 'e8']

sfreq = 250
info = mne.create_info(ch_names = ch_names, sfreq = sfreq)
raw = mne.io.RawArray(data.transpose() , info)
mne.filter.filter_data(raw, sfreq, l_freq=7.5, h_freq=12.5) 
raw.plot(duration=0.5)
2

Mne.filter.filter_data function takes arrays as inputs and not Raw instances

With your example you can use raw.filter method

Hope this helps
Alex