how to stack monthly(hist)

2017 3 24
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更新时间：2017 4 3
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Hi
I have time series. I want to stack monthly(hist). I need to count how many times my time series repeated in every month for given long period and stack each month results. January+January, February+February, March+March..... Such as January would be repeated 250, February 300, March 280.......
(Please see attached excel file).
Thanks a lot!

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Andrei Bobrov
Andrei Bobrov 2017-3-24

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[~,~,c] = xlsread('stack_monthly.xlsx');
[y,m] = datevec(c,'yyyy-mm-ddTHH:MM:SS.FFFZ');
a = unique([y,m],'rows');
out = accumarray(a(:,2),1);

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davit petraasya
davit petraasya 2017-3-24
Thank you Andrei! It worked.
davit petraasya
davit petraasya 2017-3-29
编辑：davit petraasya 2017-3-29
Hi Andrei, can you do me one more favor,please? Now I have values corresponding to months. How I may stack monthly values?(Attached file)
Thank you!
Andrei Bobrov
Andrei Bobrov 2017-3-29
[d,~,c] = xlsread('stack_montlyvalues.xlsx');
[~,m] = datevec(c(:,1),'yyyy-mm-ddTHH:MM:SS.FFFZ');
[a,~,ii] = unique(m);
out = [a,accumarray(ii,d)];
davit petraasya
davit petraasya 2017-4-3
Thanks a lot for your help again Andrei. Code is working!

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