NdArray::NdArray()
Construct an NdArray object with the given shape, filling with the given element.
Synopsis
NdArray(const Shape<N> &shape, const T &val)Arguments
shape: shape of NdArray.
val: value of element.
NdArray::NdArray()
Construct an NdArray object with the given shape, filling with an array of type T.
Synopsis
NdArray(
const Shape<N> &shape,
const T *data,
size_t sz)Arguments
shape: shape of NdArray.
data: an array of elements.
sz: size of elements.
NdArray::NdArray()
Construct an NdArray object with the given shape and the filling function.
Synopsis
NdArray(const Shape<N> &shape)Arguments
shape: shape of NdArray.
NdArray::Clone()
Clone NdArray object.
Synopsis
NdArray<T, N> Clone()Return
new NdArray object.
NdArray::Diagonal()
Get diagonals of NdArray object.
Synopsis
NdArray<T, N - 1> Diagonal(
int offset,
int axis1,
int axis2)Arguments
offset: offset of the diagonal from the main diagonal. Can be positive or negative.
axis1: 1st axis of NdArray.
axis2: 2nd axis of NdArray.Return
(N-1)-dimensional diagonals.
NdArray::Expand()
Expand shape of NdArray object.
Synopsis
NdArray<T, N + 1> Expand(int axis)Arguments
axis: axis of NdArray.Return
NdArray object in (N+1)-dimensions.
NdArray::Fill()
Fill NdArray object with given value.
Synopsis
void Fill(const T &val)Arguments
val: new value.
NdArray::Flatten()
Flatten an NdArray object to a 1-dimensional shape.
Synopsis
NdArray<T, 1> Flatten()Return
An NdArray object collapsed into one dimension.
NdArray::GetDim()
Get i-th dimension of NdArray object.
Synopsis
size_t GetDim(int i)Arguments
i: index of dimensionReturn
i-th dimension.
NdArray::GetND()
Get number of dimensions of NdArray object.
Synopsis
int GetND()Return
number of dimensions.
NdArray::GetShape()
Get shape of NdArray object.
Synopsis
const Shape<N> &GetShape()Return
shape object.
NdArray::GetSize()
Get size of NdArray object.
Synopsis
size_t GetSize()Return
number of elements.
NdArray::Item()
Get element of given index from NdArray object.
Synopsis
T &Item(size_t idx)Arguments
idx: index of element.Return
value of element.
NdArray::Item()
Get sub-array of NdArray object, given View object.
Synopsis
NdArray<T, N> Item(const View &view)Arguments
view: View object.Return
sub NdArray without copying underlying data.
NdArray::operator[]()
Get element of given index from NdArray object.
Synopsis
T &operator[](size_t idx)Arguments
idx: index of element.Return
value of element.
NdArray::operator[]()
Get constraints of given view from NdArray object.
Synopsis
NdArray<T, N> operator[](const View &view)Arguments
view: view of multi-dimensional array.Return
new NdArray object.
NdArray::Pick()
Given a list of indexes, get elements from NdArray object.
Synopsis
NdArray<T, 1> Pick(const NdArray<int, 1> &indexes)Arguments
indexes: indexes of elements.Return
one-dimensional array of desired elements.
NdArray::Pick()
Given a list of indexes, get elements from NdArray object.
Synopsis
NdArray<T, 1> Pick(const NdArray<int, 2> &idxrows)Arguments
idxrows: indexes in format of 2-dimensional array, where each row is position of element.Return
one-dimensional array of desired elements.
NdArray::Repeat()
Repeat each element of an array along given axis.
Synopsis
NdArray<T, N> Repeat(size_t repeats, int axis)Arguments
repeats: number of repetitions for each element.
axis: axis of NdArray.Return
new NdArray object.
NdArray::RepeatBlock()
Repeat an array a number of times along given axis.
Synopsis
NdArray<T, N> RepeatBlock(size_t repeats, int axis)Arguments
repeats: number of repetitions.
axis: axis of NdArray.Return
new NdArray object.
NdArray::Represent()
String representation of NdArray object.
Synopsis
std::string Represent(size_t maxlen)Arguments
maxlen: max length of representation string.Return
representation string object.
NdArray::Reshape()
Reshape NdArray object to new shape.
Synopsis
template <int M> NdArray<T, M> Reshape(const Shape<M> &shape)Arguments
shape: new shape of M-dimensions.Return
M-dimensional NdArray object.
NdArray::SetItem()
Set element of given index to NdArray object.
Synopsis
void SetItem(size_t idx, const T &val)Arguments
idx: index of element.
val: value of element.
NdArray::Squeeze()
Remove axis of length 1 from shape of NdArray object.
Synopsis
NdArray<T, N - 1> Squeeze(int axis)Arguments
axis: axis of NdArray, where the length is 1.Return
(N-1)-dimensional NdArray object.
NdArray::Sum()
Sum of all elements in NdArray object.
Synopsis
template <class Ta> NdArray<Ta, 0> Sum()Return
sum in zero dimension.
NdArray::Sum()
Sum of elements at given axis of NdArray object.
Synopsis
template <class Ta> NdArray<Ta, N - 1> Sum(int axis)Arguments
axis: axis of NdArray.Return
(N-1)-dimensional NdArray object.
NdArray::Transpose()
Perform matrix transpose of NdArray object.
Synopsis
NdArray<T, N> Transpose()Return
transposed NdArray object.