monts in year sequence, string, matrix

I have a series of 365 days. I need to divide the elements of the array into months with 31, 28, 31, 30 .. days and add the values ​​for the months.

The result should be a series of 12 months with aggregated values ​​for each month.

can i have a reshape function?

Answer 1

[Walter Roberson]

Convert to a timeseries() object and use retime()

Or:

Data = rand(365,1);
Data_timestamp = datetime(2021, 1, 1:365).';  %use non-leap year !
month_totals = accumarray(month(Data_timestamp), Data)

month_totals = 12×1

17.6917 12.5502 14.1349 17.2993 14.2127 17.4742 16.3479 14.0845 13.4153 15.4119

[Nikola Ostojic]

Thanks!!

This work :)

Answer 2

[dpb]

Add the date to a timetable and retime with aggregation--

tt=timetable(datetime(yr,1,1:365).',data);      % make timetable of days and your data
ttAgg=retime(tt,'monthly','sum');

[Nikola Ostojic]

Thanks for the reply!! :))

I believe it works, but i already got the reply.