www.gusucode.com > matlab 案例源码 matlab代码程序 > matlab/SortRowsOfTallTableExample.m
%% Sort Rows of Tall Table % Sort rows of heterogeneous data in a tall table. % % Create a tall table for the |airlinesmall.csv| data set. Select the % |Year|, |Month|, and |UniqueCarrier| variables as the variables of % interest. ds = datastore('airlinesmall.csv','SelectedVariableNames',... {'Year','Month','UniqueCarrier'}); tt = tall(ds) %% % Sort the table rows in descending order and return the top 15 rows. % Collect the values into memory to view the results. T = topkrows(tt,15) %% top15 = gather(T) %% % Sort the table rows using an alphabetical sort of the |UniqueCarrier| % variable. T2 = topkrows(tt,10,'UniqueCarrier','ascend') %% top10 = gather(T2)