break up filtered EMG data into epochs

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Group 1 2020-10-23

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https://ww2.mathworks.cn/matlabcentral/answers/623368-break-up-filtered-emg-data-into-epochs

评论： Ameer Hamza 2020-10-23

hello,

I have a filtered EMG signal that i have to break up into 1.5s epochs so i could apply a periodogram function. But i am not sure how to break it up with a simple command.

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Ameer Hamza 2020-10-23

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https://ww2.mathworks.cn/matlabcentral/answers/623368-break-up-filtered-emg-data-into-epochs#answer_522123

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Try something like this

t = linspace(0, 10, 1000);
eeg_signal = rand(size(t)); % eeg-signal
grps = ceil((t+eps).'/1.5);
eeg_split = splitapply(@(x,y) {[x, y]}, t(:), eeg_signal(:), grps);