Help Plot EEG wave

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Nina Ciccarelli 2019-11-11

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/490346-help-plot-eeg-wave

评论： Star Strider 2019-11-11

Screen Shot 2019-11-10 at 9.56.07 PM.png

I have an eeg signal and i am trying to plot it time vs amplitude, for some reason it is clipping and i dont know how to fix it, changing the ylim only changes the axis, please help

here is the code

close all; clear all; clc;

fs = 512

T = 1/fs;% sampling rate or frequency

load 'base' % contains eeg1 and fs

tx =[0:length(data)-1]/fs;% Make time axis for EEG signal

figure; subplot (211), plot(tx,data); xlabel('Time (s)'), ylabel('Amplitude (uV)'), title('Original EEG signal'); %EEG waveform

subplot(212), plot(tx,data);

xlabel('Time (s)'), ylabel('Amplitude (uV)'), title('Zoom into original EEG signal at 1 to 2 seconds'), xlim([1,2]) % Used to zoom in on single ECG waveformfigure;

%The mean of the PSDs of xl

mean_EEGsig = mean(data)

max_value=max(data)

mean_value=mean(data)

threshold=(max_value-mean_value)/2;