Subset time series plot

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Bruno
Bruno 2014-1-26
评论： Bruno 2014-1-26
I have a time series plot (y). I want divide the time series into subsets and subsequently extract the subsets separately. In other word, I want to divide the time series plot into equal chunks.
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Azzi Abdelmalek
Azzi Abdelmalek 2014-1-26
Post a short example
Bruno
Bruno 2014-1-26
I want divide the following plot into 7 equal chunks (subsets) and extract separately
t=0:0.001:10; x=0.2*cos(t) + cos(1.4*t) + 0.8*cos(5.2*t) + 0.02*randn(1, 10001);

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Amit
Amit 2014-1-26
编辑：Amit 2014-1-26
t = 0:0.001:10;
x = 0.2*cos(t) + cos(1.4*t) + 0.8*cos(5.2*t) + 0.02*randn(1, 10001);
N = 7; % Number of divisions
I = 1:ceil(numel(t)/N):numel(t);
if (I(end) ~= numel(t))
I = [I numel(t)];
end
for j = 1:N
Y{j,1} = [t(I(j):I(j+1))' x(I(j):I(j+1))'];
end
Here, Y is a cell array where every cell has the T and x subsections.
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Amit
Amit 2014-1-26
The code here plots every subset in a new figure. Thus you can see this.
The code I wrote pretty much covers what you asked. Try MATLAB documentation for different functions used here and you can figure out what changes you need to make from the code here to get what you want. With any effort from your side, this would spoon feeding.
Bruno
Bruno 2014-1-26
Amit, Thank you for your kind cooperation

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