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    %% Preview Contents of Tall Table
% Create a tall table and preview the first few rows of data.
%
% Create a tall table for the |airlinesmall.csv| data set. Select a subset
% of the variables to work with. Use |head| to extract the first few rows
% of data.
varnames = {'Year','Month','ArrDelay','DepDelay','UniqueCarrier'};
ds = datastore('airlinesmall.csv','TreatAsMissing','NA',...
    'SelectedVariableNames',varnames);
T = tall(ds)

%%
tt = head(T)

%%
% Collect the results into memory to view the data.
t8 = gather(tt)