class MergeSortIndirect extends AnyRef
The MergeSortIndirect class provides an implementation of Indirect Merge Sort,
a version of mergesort that does not re-arrange the array, but modifies an
Int array called 'perm' such that 'perm(i)' is the index of the i-th smallest
entry in the array (i.e., a(perm(i)) <= a(perm(i+1)).
The 'isort' method returns the permutation that sorts array 'a' in 'perm'.
Will indirectly sort any type supported by the Vec_Elem less-than operator.
- See also
scalation.linalgebra.Vec_Elem
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- new MergeSortIndirect(a: Array[Any])(perm: Array[Int] = Array.range (0, a.length))
- a
the array to be indirectly sorted
- perm
the initial permutation, either 0 until a.length or result of last isort
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- def isort(): Array[Int]
Indirectly sort the array 'a' by updating the permutation array 'perm'.
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