NonNegativeLeastSquaresSolver Class Reference

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

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

List of all members.

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.

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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)

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Member Enumeration Documentation

enum RETURN_STATUS

Enumerator:

SOLVED
ITERATION_EXCEEDED

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Member Function Documentation

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