package owl-base

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package owl-base
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Parameter
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Class type
Basic functions
val length : 'a array -> int

Refer to OCaml native array.

val get : 'a array -> int -> 'a

Refer to OCaml native array.

val set : 'a array -> int -> 'a -> unit

Refer to OCaml native array.

val make : int -> 'a -> 'a array

Refer to OCaml native array.

val create_float : int -> float array

Refer to OCaml native array.

val init : int -> (int -> 'a) -> 'a array

Refer to OCaml native array.

val make_matrix : int -> int -> 'a -> 'a array array

Refer to OCaml native array.

val append : 'a array -> 'a array -> 'a array

Refer to OCaml native array.

val concat : 'a array list -> 'a array

Refer to OCaml native array.

val sub : 'a array -> int -> int -> 'a array

Refer to OCaml native array.

val copy : 'a array -> 'a array

Refer to OCaml native array.

val fill : 'a array -> int -> int -> 'a -> unit

Refer to OCaml native array.

val blit : 'a array -> int -> 'a array -> int -> int -> unit

Refer to OCaml native array.

val to_list : 'a array -> 'a list

Refer to OCaml native array.

val of_list : 'a list -> 'a array

Refer to OCaml native array.

val iter : ('a -> unit) -> 'a array -> unit

Refer to OCaml native array.

val iteri : (int -> 'a -> unit) -> 'a array -> unit

Refer to OCaml native array.

val fold_left : ('a -> 'b -> 'a) -> 'a -> 'b array -> 'a

Refer to OCaml native array.

val fold_right : ('b -> 'a -> 'a) -> 'b array -> 'a -> 'a

Refer to OCaml native array.

val map2 : ('a -> 'b -> 'c) -> 'a array -> 'b array -> 'c array

Refer to OCaml native array.

val for_all : ('a -> bool) -> 'a array -> bool

Refer to OCaml native array.

val exists : ('a -> bool) -> 'a array -> bool

Refer to OCaml native array.

val mem : 'a -> 'a array -> bool

Refer to OCaml native array.

val memq : 'a -> 'a array -> bool

Refer to OCaml native array.

val min_i : ?cmp:('a -> 'a -> int) -> 'a array -> int

``min_i x`` returns the index of minimum value in array ``x``. If ``cmp`` is not passed in then ``Pervasives.compare`` is used as default value.

val max_i : ?cmp:('a -> 'a -> int) -> 'a array -> int

``max_i x`` returns the index of minimum value in array ``x``. If ``cmp`` is not passed in then ``Pervasives.compare`` is used as default value.

val argsort : ?cmp:('a -> 'a -> int) -> 'a array -> int array

``argsort cmp x`` sorts ``x`` according to the compare function ``cmp`` and returns the corresponding indices.

val sort : ('a -> 'a -> int) -> 'a array -> unit

Refer to OCaml native array.

val stable_sort : ('a -> 'a -> int) -> 'a array -> unit

Refer to OCaml native array.

val fast_sort : ('a -> 'a -> int) -> 'a array -> unit

Refer to OCaml native array.

val sort_fill : ?min:int -> ?max:int -> ?fill:int -> int array -> int array

``sort_fill ~min ~max ~fill x`` first sorts ``x``, then expands it to an array of length ``max - min + 1``, and fills the holes with ``fill``. E.g., ``sort_fill ~min:1 ~max:5 ~fill:0 |4;2| x`` returns a new array as follows: ``|1; 0; 2; 0; 4; 5|``.

val unsafe_get : 'a array -> int -> 'a

Refer to OCaml native array.

val unsafe_set : 'a array -> int -> 'a -> unit

Refer to OCaml native array.

Extended functions
val (@) : 'a array -> 'a array -> 'a array

Operator of array concatenation.

val get_slice : int array -> 'a array -> 'a array

``get_slice slice x`` returns a copy of slice of ``x`` defined by ``slice``. The ``slice`` definition must have ``|start;stop;step|`` format. The value of start, stop, and step can be negative, and the boundary is inclusive.

val set_slice : int array -> 'a array -> 'a array -> unit

``set_slice slice x y`` sets the elements in ``x`` to the corresponding value of the elements in ``y`` based on the slice definition ``slice``. Please refer to ``get_slice`` function for the information on the format of slice definiton.

val flatten : 'a array array -> 'a array

Flatten an array array into an array.

val set_n : 'a array -> int array -> 'a -> unit

TODO

val range : int -> int -> int array

TODO

val count : 'a array -> 'a -> int

TODO

val insert : 'a array -> 'a array -> int -> 'a array

TODO

val unique : 'a array -> 'a array

``unique x`` removes the duplicates in the array ``x``.

val merge : 'a array -> 'a array -> 'a array

``merge x y`` merges two arrays and removes the duplicates.

val remove : 'a array -> int -> 'a array

TODO

val replace : int -> int -> 'a array -> 'a array -> 'a array

TODO

val reverse : 'a array -> unit

``reverse x`` reverse the elements in ``x`` in place.

val mapi : (int -> 'a -> 'b) -> 'a array -> 'b array

TODO

val map : ('a -> 'b) -> 'a array -> 'b array

TODO

val iter2i : (int -> 'a -> 'b -> unit) -> 'a array -> 'b array -> unit

TODO

val iter2 : ('a -> 'b -> unit) -> 'a array -> 'b array -> unit

TODO

val iter3i : (int -> 'a -> 'b -> 'c -> unit) -> 'a array -> 'b array -> 'c array -> unit

TODO

val iter3 : ('a -> 'b -> 'c -> unit) -> 'a array -> 'b array -> 'c array -> unit

TODO

val iter4i : (int -> 'a -> 'b -> 'c -> 'd -> unit) -> 'a array -> 'b array -> 'c array -> 'd array -> unit

TODO

val iter4 : ('a -> 'b -> 'c -> 'd -> unit) -> 'a array -> 'b array -> 'c array -> 'd array -> unit

TODO

val map2i : (int -> 'a -> 'b -> 'c) -> 'a array -> 'b array -> 'c array

TODO

val map2i_split2 : (int -> 'a -> 'b -> 'c * 'd) -> 'a array -> 'b array -> 'c array * 'd array

TODO

val map3i : (int -> 'a -> 'b -> 'c -> 'd) -> 'a array -> 'b array -> 'c array -> 'd array

TODO

val map3 : ('a -> 'b -> 'c -> 'd) -> 'a array -> 'b array -> 'c array -> 'd array

TODO

val map4i : (int -> 'a -> 'b -> 'c -> 'd -> 'e) -> 'a array -> 'b array -> 'c array -> 'd array -> 'e array

TODO

val map4 : ('a -> 'b -> 'c -> 'd -> 'e) -> 'a array -> 'b array -> 'c array -> 'd array -> 'e array

TODO

val filteri_v : (int -> 'a -> bool * 'b) -> 'a array -> 'b array

TODO

val filter_v : ('a -> bool * 'b) -> 'a array -> 'b array

TODO

val filteri : (int -> 'a -> bool) -> 'a array -> 'a array

``filteri f x`` filters out the elements in ``x`` according to predicate ``f``.

val filter : ('a -> bool) -> 'a array -> 'a array

``filter f x`` filters out the elements in ``x`` according to predicate ``f``.

val filter2i : (int -> 'a -> 'b -> bool) -> 'a array -> 'b array -> ('a * 'b) array

``filter2i f x y`` filters the elements in ``x`` and ``y`` using passed in function ``f``. Both arrays must have same length.

val filter2 : ('a -> 'b -> bool) -> 'a array -> 'b array -> ('a * 'b) array

``filter2 f x y`` is similar to ``filter2i`` but without passing index of the elements to function ``f``.

val filter2i_i : (int -> 'a -> 'b -> bool) -> 'a array -> 'b array -> int array

``filter2i_i f x y`` filters the elements in ``x`` and ``y`` using passed in function ``f``. Both arrays must have same length. Note that the indices of those satisfying the predicate ``f`` are returned in an array.

val filter2_i : ('a -> 'b -> bool) -> 'a array -> 'b array -> int array

``filter2_i f x y`` is similar to ``filter2i_i`` but without passing index of the elements to function ``f``.

val filter2_split : ('a -> 'b -> bool) -> 'a array -> 'b array -> 'a array * 'b array

``filter2_split f x y`` is similar to ``filter2 f x y``, but the returned results are two separated arrays rather than merging into one tuple array.

val resize : ?head:bool -> 'a -> int -> 'a array -> 'a array

``resize ~head v n x`` resizes ``x`` of length ``m`` to length ``n``. If ``m <= n``, a copy of ``x`` subarray is returned. If ``m > n``, then ``x`` is extended, the extra space is filled with value ``v``.

val fold2 : ('a -> 'b -> 'c -> 'a) -> 'a -> 'b array -> 'c array -> 'a

``fold2 a x y`` folds both ``x`` and ``y`` from left with starting value ``a``.

val pad : [ `Left | `Right ] -> 'a -> int -> 'a array -> 'a array

TODO

val align : [ `Left | `Right ] -> 'a -> 'a array -> 'a array -> 'a array * 'a array

``align side v x y`` aligns two arrays ``x`` and ``y`` along the specified side with value ``v``. The copies of two arrays are returned.

val align3 : [ `Left | `Right ] -> 'a -> 'a array -> 'a array -> 'a array -> 'a array * 'a array * 'a array

``align3 side v x y z`` aligns three arrays ``x``, ``y``, and ``z``.

val greater_eqaul : 'a array -> 'a array -> bool

TODO

val swap : 'a array -> int -> int -> unit

TODO

val permute : int array -> 'a array -> 'a array

TODO

val of_tuples : ('a * 'a) array -> 'a array

TODO

val complement : 'a array -> 'a array -> 'a array
val balance_last : float -> float array -> float array

``balance_last mass x`` performs the following function. Let ``l`` be the length of ``x``, if ``i < l - 1``, then ``x.(i) = x.(i)``, otherwise ``x.(l - 1) = mass - \sum_< l - 1 x.(i)``.

val index_of : 'a array -> 'a -> int

``index_of x a`` returns the index of first occurrence of ``a`` in ``x``.

val bsearch : cmp:('a -> 'a -> int) -> 'a -> 'a array -> int

Binary search. ``bsearch cmp x a`` returns the index of the largest value in the sorted array ``a`` less than or equal to ``x``, according to the comparison function ``cmp``. If ``x`` is smaller than all elements, returns -1. The function raises an exception if ``a`` is empty.

val to_string : ?prefix:string -> ?suffix:string -> ?sep:string -> ('a -> string) -> 'a array -> string

TODO

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