Global Optimization of Redescending Robust Estimators

Figure 2

Lines fitted to the data by different estimators: the solid line is the result of the computation by GO and the discontinuous line by IRLS. (a) Least Squares, (b) Least L1 norm, (c) Least L1.5 norm, (d) Geman -McClure, (e) Welsch, (f) Tukey.

(a)

(b)

(c)

(d)

(e)

(f)