nnls - Non negative least squares by Bill Whiten

nnls - Alternative to lsqnonneg: faster on large problems, improved convergence, optional restart (lsqnonneg alternative, nnls, non negative least sq...)

[x,w,info]=nnls(C,d,opts)

nnlstest1.m

LBFGSB (L-BFGS-B) mex wrapper by Stephen Becker

Mex wrapper for lbfgsb v3.0 fortan library. L-bfgs-b solves box-constrained optimization. (optimization, constrained optimizat..., quasinewton)

Non-negative least-squares (NNLS) using L-BFBS-B

compile_mex

lbfgsb

MTRON by Christoph Ortner

MTRON is a Matlab wrapper for the Fortran software TRON (a large scale trust region Newton method). (optimization, large scale, unconstrained)

...

plap(u, p)

test_mtron

active set algorithm by Uriel Roque

solve linear least squares problem with nonnegative variables (active set, least squares, nvlsq)

activeset(A,b)

newton's algorithm for nnls by Uriel Roque

Solves the linear least squares problem with nonnegative variables using the newton's algorithm (linear algebra, newton, interiorpoint)

newton(A,b,x0,niter)

predictor-corrector algorithm by Uriel Roque

Solves linear least squares with nonnegative variables (predictorcorrector, nvlsq, nnls)

pcnnls(A,b,x0,niter)

nnls by Uriel Roque

block principal pivoting algorithm (nnls, nvlsq, optimization)

blocknnls(A,b,p_type)

NNLS and constrained regression by Rasmus Bro

M-files for non-negativity constrained least squares regression. (nonnegativity, constrained, nnls)

fnnls(XtX,Xty,tol)

fnnlsb(XtX,Xty,P_old,Z_old,tol)