MATLAB: How to determine the mean value every 10 data points and then calculate the standard deviation of the mean values (150)

time series

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Here is an example of the data.

Best Answer

Suppose A is a column vector 1500x1
A = randn(1500,1);
% first reshape into columns with 10 rows
A = reshape(A,10,150);
% take the means over the columns
meanz = mean(A);
% now get the standard deviation of the means
std(meanz)
If A is a row vector, you can first transpose and then perform the above.
A = A';
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