Concatenated Segmentation using Overlapping Windows

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Tanumaya Bhowmik 2021-2-10

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https://ww2.mathworks.cn/matlabcentral/answers/741192-concatenated-segmentation-using-overlapping-windows

回答： Mathieu NOE 2021-2-10

I have a N-dimensional timeseries data with m samples (Nxm). I would like to sample the table with a fixed sized window of 50 samples with a shift of 5 samples, concatanating each sample in another table. What is an efficient algorithm to run this process?

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KALYAN ACHARJYA 2021-2-10

Can you explain with numeric data, considering any sample 1D array data?

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Answer 1

Mathieu NOE 2021-2-10

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https://ww2.mathworks.cn/matlabcentral/answers/741192-concatenated-segmentation-using-overlapping-windows#answer_620282

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hello

example below :

% dummy data
data = rand(80,5);
shift = 5;    % nb of samples for averaging 
buffer = 50;    % nb of samples for averaging 
for ci=1:fix((length(data)-buffer)/shift +1)
    start_index = 1+(ci-1)*shift;
    stop_index = min(start_index+ buffer,length(data));
    out_data{ci} =data(start_index:stop_index,:);  % 
    figure(ci),
    plot(out_data{ci});
end