SHOGUN  5.0.0
colwise_sum< Backend::EIGEN3, Matrix > Struct Template Reference

## Detailed Description

### template<class Matrix> struct shogun::linalg::implementation::colwise_sum< Backend::EIGEN3, Matrix >

Specialization of generic colwise_sum which works with SGMatrix and uses Eigen3 as backend for computing sum.

Definition at line 357 of file Sum.h.

## Public Types

typedef Matrix::Scalar T

typedef SGVector< TReturnType

typedef Eigen::Matrix< T,
Eigen::Dynamic, Eigen::Dynamic >
MatrixXt

typedef Eigen::Matrix< T,
Eigen::Dynamic, 1 >
VectorXt

## Static Public Member Functions

static SGVector< Tcompute (SGMatrix< T > m, bool no_diag)

static SGVector< Tcompute (Block< SGMatrix< T > > b, bool no_diag)

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

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

## Member Typedef Documentation

 typedef Eigen::Matrix MatrixXt

Eigen matrix type

Definition at line 366 of file Sum.h.

 typedef SGVector ReturnType

Return type

Definition at line 363 of file Sum.h.

 typedef Matrix::Scalar T

Scalar type

Definition at line 360 of file Sum.h.

 typedef Eigen::Matrix VectorXt

Eigen vector type

Definition at line 369 of file Sum.h.

## Member Function Documentation

 static SGVector compute ( SGMatrix< T > m, 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
Returns
the colwise sum of co-efficients computed as $$s_j=\sum_{i}m_{i,j}$$

Definition at line 378 of file Sum.h.

 static SGVector compute ( Block< SGMatrix< T > > b, 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
Returns
the colwise sum of co-efficients computed as $$s_j=\sum_{i}b_{i,j}$$

Definition at line 393 of file Sum.h.

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

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

Parameters
 mat 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

Definition at line 407 of file Sum.h.

 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

Definition at line 431 of file Sum.h.

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

SHOGUN Machine Learning Toolbox - Documentation