colwise_sum< Backend, Matrix > Struct Template Reference

Detailed Description

template<enum Backend, class Matrix>
struct shogun::linalg::implementation::colwise_sum< Backend, Matrix >

Generic class colwise_sum which provides a static compute method. This class is specialized for different types of matrices and backend, providing a means to deal with various matrices directly without having to convert.

Definition at line 129 of file Sum.h.

Public Types
typedef Matrix::Scalar	T

Static Public Member Functions
static SGVector< T >	compute (Matrix m, bool no_diag)
static SGVector< T >	compute (Block< Matrix > b, bool no_diag)
static void	compute (SGMatrix< T > m, SGVector< T > result, bool no_diag)
static void	compute (Block< SGMatrix< T > > b, SGVector< T > result, bool no_diag)

Member Typedef Documentation

typedef Matrix::Scalar T

Scalar type

Definition at line 132 of file Sum.h.

Member Function Documentation

static SGVector<T> compute ( Matrix  m, bool  no_diag  )

static

Method that computes column wise sum of co-efficients of a dense matrix

Parameters

m	the matrix whose colwise sum of co-efficients has to be computed
no_diag	if true, diagonal entries are excluded from the sum

Returns

the colwise sum of co-efficients computed as \(s_j=\sum_{i}m_{i,j}\)

static SGVector<T> compute ( Block< Matrix >  b, bool  no_diag  )

static

Method that computes column wise sum of co-efficients of dense matrix blocks

Parameters

b	the matrix-block whose colwise sum of co-efficients has to be computed
no_diag	if true, diagonal entries are excluded from the sum

Returns

the colwise sum of co-efficients computed as \(s_j=\sum_{i}b_{i,j}\)

static void compute ( SGMatrix< T >  m, SGVector< T >  result, bool  no_diag  )

static

Method that computes the column wise sum of co-efficients of SGMatrix using Eigen3

Parameters

m	the matrix whose colwise sum of co-efficients has to be computed
no_diag	if true, diagonal entries are excluded from the sum
result	Pre-allocated vector for the result of the computation

static void compute ( Block< SGMatrix< T > >  b, SGVector< T >  result, bool  no_diag  )

static

Method that computes the column wise sum of co-efficients of SGMatrix blocks using Eigen3

Parameters

b	the matrix-block whose colwise sum of co-efficients has to be computed
no_diag	if true, diagonal entries are excluded from the sum
result	Pre-allocated vector for the result of the computation

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The documentation for this struct was generated from the following file:

• Sum.h