## 6.15 Sort functions

See the sorting functions section for examples of how the functions work.

vector sort_asc(vector v)
Sort the elements of v in ascending order
Available since 2.0

row_vector sort_asc(row_vector v)
Sort the elements of v in ascending order
Available since 2.0

vector sort_desc(vector v)
Sort the elements of v in descending order
Available since 2.0

row_vector sort_desc(row_vector v)
Sort the elements of v in descending order
Available since 2.0

array[] int sort_indices_asc(vector v)
Return an array of indices between 1 and the size of v, sorted to index v in ascending order.
Available since 2.3

array[] int sort_indices_asc(row_vector v)
Return an array of indices between 1 and the size of v, sorted to index v in ascending order.
Available since 2.3

array[] int sort_indices_desc(vector v)
Return an array of indices between 1 and the size of v, sorted to index v in descending order.
Available since 2.3

array[] int sort_indices_desc(row_vector v)
Return an array of indices between 1 and the size of v, sorted to index v in descending order.
Available since 2.3

int rank(vector v, int s)
Number of components of v less than v[s]
Available since 2.0

int rank(row_vector v, int s)
Number of components of v less than v[s]
Available since 2.0