adj.cssls:
Solve matrix equation
Description
This function was obtained from NMF package (Gaujoux R., BMC Bioinformatics 2010,11:367) at https://github.com/renozao/NMF/blob/master/R/algorithms-snmf.R and was adjusted for some minor bug fixes
Usage
adj.cssls(CtC, CtA, Pset = NULL)
References
The origibal matlab code was proposed by M. H. Van Benthem and M. R. Keenan, J. Chemometrics 2004; 18: 441-450