How to define line code to block Frequency EEG based on specific range?

I am new on mathalab and programmation, I am loocking for a base script to lock specific range of EEG frequency.

I would like :

to create a script able to detect the frequency from 0 to 20 Hz.

to block some of this frquency.

Thank you for help.

[Manikanta Aditya]

Just as a starting point of help you can refer this:

% Assuming 'eegData' is your EEG data and 'Fs' is the sampling frequency
eegData = ...; 
Fs = ...; 

% Design a bandpass filter that passes frequencies between 0 and 20 Hz
d = designfilt('bandpassiir', 'FilterOrder', 20, ...
               'HalfPowerFrequency1', 0, 'HalfPowerFrequency2', 20, ...
               'SampleRate', Fs);

% Apply the filter to the EEG data
filteredEegData = filtfilt(d, eegData);

[MOUSTADRANE]

Thank you very much, it s help full !

Answer 1

[Manikanta Aditya]

Hi @MOUSTADRANE,

Refer this code as a starting point:

% Assuming 'eegData' is your EEG data and 'Fs' is the sampling frequency
eegData = ...; 
Fs = ...; 

% Design a bandpass filter that passes frequencies between 0 and 20 Hz
d = designfilt('bandpassiir', 'FilterOrder', 20, ...
               'HalfPowerFrequency1', 0, 'HalfPowerFrequency2', 20, ...
               'SampleRate', Fs);

% Apply the filter to the EEG data
filteredEegData = filtfilt(d, eegData);

I hope this helps.