moving window with 30-year data

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Poulomi Ganguli 2017-10-16

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评论： Poulomi Ganguli 2017-10-16

matrix.mat

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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Answer 1

Steven Lord 2017-10-16

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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 2017-10-16

Thanks but I am not calculating moving average. I need a 30-year moving window.

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moving window with 30-year data

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moving window with 30-year data

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