Sorts a given matrix by a specific column while retain the elements in each row.
Usage
sort_mat(x, col)
Arguments
x
A matrix to sort
col
A int that indicates the column the matrix should sort by.
Value
The matrix sorted by values in the specified column.
Details
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.