given a table with dates with the format of days and hours and minutes, how to select only those rows at 11 hours for each day? in matlab

Assuming your table is named T and the dates are stored in a datetime column named date_col, you can use the hour function to extract the hour component of each date, and select only the rows where the hour is equal to 11. Here's an example code snippet to achieve this:


main.m
% Create example table with datetime column
date_strings = ["2022-01-01 11:00:00", "2022-01-01 12:00:00", "2022-01-02 11:00:00", "2022-01-02 14:00:00", "2022-01-03 11:00:00"];
T = table(datetime(date_strings', 'InputFormat', 'yyyy-MM-dd HH:mm:ss'), rand(size(date_strings')), 'VariableNames', {'date_col', 'data_col'});

% Select only rows where hour is 11
T_hour11 = T(hour(T.date_col) == 11, :);
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The resulting table T_hour11 will contain only the rows where the hour component of date_col is equal to 11.

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matlab

datetime

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