Subset time series plot
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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.
采纳的回答
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.
11 个评论
Bruno
2014-1-26
Amit
2014-1-26
Once you plot all the sections, you can use
legend('m1','m2' .....)
Bruno
2014-1-26
Amit
2014-1-26
colorD = 'bgrcmyk';
for j = 1:N
plot(Y{j}(:,1),Y{j}(:,2),colorD(1));
hold on;
end
Bruno
2014-1-26
Amit
2014-1-26
Bruno
2014-1-26
Amit
2014-1-26
titleW = {'w1','w2','w3' ...}; % You fill it
for j = 1:N
figure;
plot(Y{j}(:,1),Y{j}(:,2));
title(titleW{j});
end
Bruno
2014-1-26
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
2014-1-26
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