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    %% Shift Timetable Data
% Create a timetable with temperature data as the variable. Shift the data
% forward in time by one time step and compare it to the original timetable.
Time = datetime('2015-12-18 12:00:00') + days(1:5)';
Temp = [43 42.6 42.3 39.1 37.3]';
TT = timetable(Time,Temp)

%%
TT2 = lag(TT)

%%
% Synchronize the two timetables for comparison. Since the timetables
% already have the same row times, |synchronize| renames the variables
% and horizontally concatenates them.
synchronize(TT,TT2)