MATLAB: How to separate each month of this file

datadata importdatesMATLABmonths

Hello everyone,
Kindly find the attached files (1 data file + 1 description file).
The data file represents data for the whole year of 2018.
Each row represents a data record per hour so that it starts from hour=0 (the 3rd column) to hour=23 and starts again from hour=0 for the next day, and so on.
The days are represented as the Day of Year (DOY) in the 2nd column.
I need to loop over the rows and save each month separately in a text file (i.e. m1, m2, …, m12).
The issue is that some months have 30 days, some have 31 days, and April sometimes has 28 days or 29 days.
Could you tell me how to separate the whole year into months?
I really appreciate your help.

Best Answer

M=cell(1,12);
cy=[0,31,59,90,120,151,181,212,243,273,304,334,365]*24;
for k=2:13
    M{k-1}=yourMatrix(cy(k-1)+1:c(k),:);
end
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