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%% Compare Dates and Time % This example shows how to compare |datetime| and |duration| arrays. % You can perform an element-by-element comparison of values in two % |datetime| arrays or two |duration| arrays using relational operators, % such as |>| and |<|. %% Compare Datetime Arrays % Compare two |datetime| arrays. The arrays must be the same size or one % can be a scalar. A = datetime(2013,07,26) + calyears(0:2:6) B = datetime(2014,06,01) %% A < B %% % The |<| operator returns logical |1| (true) where a datetime in |A| % occurs before a datetime in |B|. %% % Compare a |datetime| array to text representing a date. A >= 'September 26, 2014' %% % Comparisons of |datetime| arrays account for the time zone information of % each array. %% % Compare September 1, 2014 at 4:00 p.m. in Los Angeles with 5:00 % p.m. on the same day in New York. A = datetime(2014,09,01,16,0,0,'TimeZone','America/Los_Angeles',... 'Format','dd-MMM-yyyy HH:mm:ss Z') %% B = datetime(2014,09,01,17,0,0,'TimeZone','America/New_York',... 'Format','dd-MMM-yyyy HH:mm:ss Z') %% A < B %% % 4:00 p.m. in Los Angeles occurs after 5:00 p.m. on the same day in New York. %% Compare Durations % Compare two |duration| arrays. A = duration([2,30,30;3,15,0]) B = duration([2,40,0;2,50,0]) %% A >= B %% % Compare a duration array to a numeric array. Elements in the numeric % array are treated as a number of fixed-length (24-hour) days. A < [1; 1/24] %% Determine if Dates and Time Are Contained Within an Interval % Use the |isbetween| function to determine whether values in a |datetime| % array lie within a closed interval. %% % Define endpoints of an interval. tlower = datetime(2014,08,01) tupper = datetime(2014,09,01) %% % Create a |datetime| array and determine whether the values lie within the % interval bounded by |t1| and |t2|. A = datetime(2014,08,21) + calweeks(0:2) %% tf = isbetween(A,tlower,tupper)