How to take monthly of time series using loop I am having data form each month( having 30/31) data values

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Chris Martin 2014-9-17

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https://ww2.mathworks.cn/matlabcentral/answers/155194-how-to-take-monthly-of-time-series-using-loop-i-am-having-data-form-each-month-having-30-31-data-v

编辑： Andrei Bobrov 2014-9-18

How to take monthly average from each month using loop, and in one year there should be 12 values

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Adam 2014-9-17

Give an example of what your inputs look like otherwise it is impossible to answer. There aren't any prizes for the shortest "question" statement on the forum!

Chris Martin 2014-9-18

编辑：Chris Martin 2014-9-18

the time series example is given here..i need mean for every month..and its not only one year daya year also varies...the time series is like year month date valeu1 value 2 like that..I monthly mean such that in one year there is only 12 values...again this is not one year data.... http://www.mathworks.in/matlabcentral/answers/155193-how-to-take-monthly-of-time-series-using-loop

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Answer 1

dpb 2014-9-17

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https://ww2.mathworks.cn/matlabcentral/answers/155194-how-to-take-monthly-of-time-series-using-loop-i-am-having-data-form-each-month-having-30-31-data-v#answer_152032

This question was just asked (again) and answered at

http://www.mathworks.com/matlabcentral/answers/155179-calculate-the-accumulation-of-a-variable-over-time-within-a-loop#answer_152004

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Answer 2

Andrei Bobrov 2014-9-18

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https://ww2.mathworks.cn/matlabcentral/answers/155194-how-to-take-monthly-of-time-series-using-loop-i-am-having-data-form-each-month-having-30-31-data-v#answer_152079

编辑：Andrei Bobrov 2014-9-18

在 MATLAB Online 中打开

yourdata.mat

load yourdata.mat
[ym,~,c] = unique(a(:,1:2),'rows');
s = size(a)-[0,3];
ii = repmat(c,s(2),1);
jj = repmat(1:s(2),s(1),1);
out = [ym,accumarray([ii,jj(:)],reshape(a(:,4:end),[],1),[],@mean)];