Instead of returning a sorted vector like sort_, isort returns the indexes
in the original vector for each element in the sorted vector.
X[F.isort(X)] is equivalent to sort_(X).
- 参数:
X (Constant) -- A vector or a tuple of vectors of the same length.
ascending (Constant) -- A Boolean scalar or vector indicating whether to sort X (or vectors of X
sequentially) in ascending order or descending order. The default value
is true (ascending order).
