DIVIDING A SIGNAL INTO SHORTER SEGMENTS AND SAVING THEM

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SSG_newbiecoder 2018-3-7

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https://ww2.mathworks.cn/matlabcentral/answers/386809-dividing-a-signal-into-shorter-segments-and-saving-them

评论： Anusshree 2023-12-19

Hello, I have a signal of 30 minutes duration. It is a csv file. I want to divide it into non overlapping segments of 10 sec duration and save them as different recordings. The sampling frequency of the signal is 360 Hz. How can I achieve this in matlab?

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NICOLE MIN 2020-6-1

how can i segemnt a 1 hour length ech signal into 1 min 2 min and 5 min?

NICOLE MIN 2020-6-1

how can i segment 1 hr length ecg signal into 1 min 2 min and 5 min. thanks

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采纳的回答

Jan 2018-3-7

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https://ww2.mathworks.cn/matlabcentral/answers/386809-dividing-a-signal-into-shorter-segments-and-saving-them#answer_308811

在 MATLAB Online 中打开

Folder = 'E:\data_Lab\MITBIH\edited\';
X  = xlsread('E:\data_Lab\MITBIH\edited\100.csv');
X1 = X(:,1);
t1 = 1;
t2 = 3600;
k  = 1;
while t2 <= 651600
  new_seg = X1(t1:min(t2,length(X1)));
  File    = sprintf('Part%04d.csv', k);
  csvwrite(fullfile(Folder, File), new_seg);
  t1 = t1 + 3600;
  t2 = t2 + 3600;
  k  = k + 1;
end