Sort Matrix by Column
Sorts a given matrix by a specific column while retain the elements in each row.
sort_mat(x, col)
x |
A |
col |
A |
The functional difference between armadillo's sort() and sort_mat() is straight forward. sort() will sort each column without respect to the rows. Using sort_matrix will sort only 1 column and retain the other elements to be in the same row.
The matrix sorted by values in the specified column.
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