moving window with 30-year data

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Poulomi Ganguli
Poulomi Ganguli 2017-10-16
评论： Poulomi Ganguli 2017-10-16
Hello, I have a matrix of time series data as attached. Time series lengths from 1970-2012. I need to extract moving block of 30-year window from this, with moving a year on every-time step. For example, the first block from 1970-2009, 2nd block 1971-2010, 1972-2011, and so on.
so something like this:
for i=size(unique(matrix(:,1),1)
30_yrblock = [my timeseries]
do whatever calculation with 30-year window
Result(i,:) = [];
end
However, I am not sure how to do so. Any help please?
Thanks!

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回答（1 个）

Steven Lord
Steven Lord 2017-10-16
Use the movmean function with the SamplePoints option. See the "Sample Points for Moving Average" example on that documentation page.
Alternately if your data is stored in a timetable use the retime function.
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Poulomi Ganguli
Poulomi Ganguli 2017-10-16
Thanks but I am not calculating moving average. I need a 30-year moving window.

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