drop duplicate dates in matlab

You can use the unique function in MATLAB to drop duplicate dates. Here's an example assuming your dates are in a column vector:

main.m
% Example data
dates = [datenum('2021-01-01'); datenum('2021-01-02'); datenum('2021-01-01')];

% Drop duplicates
unique_dates = unique(dates);
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The resulting unique_dates variable will contain only one copy of each date, even if there were duplicates in the original dates vector. You can then use this unique_dates vector for further processing as needed.