Extract data from timetable for specific months

2021 10 12
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更新时间：2021 10 12
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Dear All
I have timetable data (tt). The table contains H with range 1950-2020, I want to extract H in the timetable.
how to extract data (H) for spesific months (January, February, and December) over the years?

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Walter Roberson
Walter Roberson 2021-10-12
编辑：Walter Roberson 2021-10-12

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[~, mon, ~] = ymd(TT.t1);
mask = ismember(mon, [1 2 12]);
TTsubset = TT(mask,:);
Or if you were looking for specific months,
Jansubset = TT(mon == 1, :);
Febsubset = TT(mon == 2, :);
Decsubset = TT(mon == 12, :);
Remember that all the years run together in these, so the last entry for January 1950 would be followed immediately by the first entry for January 1951.

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