Dear matplotlibers,
I seem to use Non Negative Least Squares every couple of months and the most recent problem I solved reminded me that I meant to post this last November.
fnnls.py is a port of fnnls.m which was written by Rasmus Bro (http://newton.foodsci.kvl.dk/users/rasmus.html, code available at http://www.ub.es/gesq/mcr/als/fnnls.m, and also available on Matlab Central).
I’ve retained Rasmus’ comments and translated the matlab to python/numpy.
fnnls.py (4.38 KB)