NonNegativeLeastSquaresSolver Class Reference

Wrapper for a non-negative least squares (NNLS) solver. More...

#include <OpenMS/MATH/MISC/NonNegativeLeastSquaresSolver.h>

Public Types
enum	RETURN_STATUS { SOLVED, ITERATION_EXCEEDED }

Static Public Member Functions
static Int	solve (const Matrix< double > &A, const Matrix< double > &b, Matrix< double > &x)
	This is a wrapper for the external nnls library for the non-negative least square problem Ax=b, where x>0. More...

Detailed Description

Wrapper for a non-negative least squares (NNLS) solver.

It solves Ax=b, where x>0 in the least squares sense (i.e. minimum residual)

Member Enumeration Documentation

RETURN_STATUS

enum RETURN_STATUS

Enumerator
SOLVED
ITERATION_EXCEEDED

Member Function Documentation

solve()

static Int solve ( const Matrix< double > &  A, const Matrix< double > &  b, Matrix< double > &  x  )

static

This is a wrapper for the external nnls library for the non-negative least square problem Ax=b, where x>0.

Parameters

A	Input matrix A of size mxn
b	Input vector (matrix with one column) b of size mx1
x	Output vector with non-negative least square solution of size mx1

Returns

status of solution (either NonNegativeLeastSquaresSolver::SOLVED, NonNegativeLeastSquaresSolver::ITERATION_EXCEEDED)

Exceptions

Exception::InvalidParameters

if Matrix dimensions do not fit

Referenced by MetaProSIPDecomposition::calculateDecompositionWeightsIsotopicPatterns().