Nested sort of a matrix based on multiple columns% sort data first by colum 1, then by column 2, and finally by column 3Example% create a data table with three columns ("Subject" "Treatment" "Time" ) data = [1 1 1 2 1 1 3 1 1 1 2 1 2 2 1 3 2 1 1 1 2 2 1 2 3 1 2 1 2 2 2 2 2 3 2 2] % sort data table first using column 1, then using column 2, and finally column 3
[data_sorted, sort_index] = sortrows(data, [1,2,3]) data_sorted = 1 1 1 1 1 2 1 2 1 1 2 2 2 1 1 2 1 2 2 2 1 2 2 2 3 1 1 3 1 2 3 2 1 3 2 2 Index of how the rows are re-ordered sort_index =
1 7 4 10 2 8 5 11 3 9 6 12 data_sorted = data(sort_index,:) |