Iterated Least Squares? https://en.wikipedia.org/wiki/Iteratively_reweighted_least_squares https://en.wikipedia.org/wiki/Iteratively_reweighted_least_s... Unle

Iterated Least Squares? https://en.wikipedia.org/wiki/Iteratively_reweighted_least_squares https://en.wikipedia.org/wiki/Iteratively_reweighted_least_s... Unless I misunderstood the question...