sorti

sorti sorts a real, complex or string matrix or vector in ascending order and returns an index vector of the sorted matrix.

rvSortIndex = sorti(mUnsorted)

rvSortIndex = sorti(mUnsorted, options)

Return Value

rvSortIndex is a index vector of the sorted matrix.

Parameters

mUnsorted

mUnsorted is the unsorted matrix. The first column will be sorted.

options

options is a OR combination of the following values:

SORT_REVERT (1)	Sort in descending order. Default ascending order.
SORT_CASE (2)	Case sensitive sorting (only for string vectors/matrices). Default: sorti ignores case.

Example

* srand("test")
    1.0000
* a = rand(3,3)
* a
    0.5536     0.7214     0.6267
    0.0735     0.9892     0.8892
    0.4024     0.0891     0.5894
* sorti(a) // sort first column
    2.0000
    3.0000
    1.0000
* // sort second column
* sorti(a[;2])
    3.0000
    1.0000
    2.0000
* // sort third column
* a = a[sorti(a[;3]);]
* a
    0.4024     0.0891     0.5894
    0.5536     0.7214     0.6267
    0.0735     0.9892     0.8892

History

Version	Description
R2013.2	Uses mergesort instead of quicksort. Mergesort is a stable sort, which means the implementation preserves the input order of equal elements in the sorted output.
5.0.0	New parameter options.

See also

sort, reshape

_id-1715870